Black Belt Sample Paper by Vishwadeep Khatri | Jun 2, 2020 | 0 comments Q. The customer support team claims that it typically takes about 2 days to respond to a ticket. The team recorded the response time for 100 similar issue tickets and checked for normality. The data was non normal. What hypothesis test can be used to validate the claim?1 Sample Sign testMoods Median testMann Whitney test1 Sample t testQ. What is plotted on a U-chart?Defects per unit with respect to timeUnusual observations with respect to timeUniformity with respect to timeCount of Defects with respect to timeQ. Calculate the main effect of factor “B” for the below.65-655-5Q. The Quality Assurance department at a call center wants to compare the call times on incoming calls for two teams. For each team, 300 incoming calls are timed. Which hypothesis tests can be used to determine whether the teams differ in their call time variations and call time means respectively?Bartlett’s test and One-way ANOVAF-test and Two-way ANOVABartlett's test test and 2 proportion testF-test and 2-sample t testQ. Who can act as the process owner, if the actual process owner is missing?SponsorSMEChampionEither sponsor or championQ. Which of the following is NOT a test for special cause in a C chart?1 point more than 3 standard deviations from the center point9 points in a row on the same side of the center line14 points in a row, alternating up and down8 points in a row > 1 standard deviation from the center lineQ. Calculate the interaction effect (AB) for the following data and match with the appropriate statement16002080Q. Which of the following is the correct intended movement of the baseline metric after validation?Yield should decreaseDefective % should increaseSigma Level overall should increasePerformance Ratio (Pp) and Performance Index (Ppk) should decreaseQ. Power of the design can be increased by ________________Replicating the center pointsReplicating the corner pointsBoth of the aboveNone of the aboveQ. Assuming the costs of investment are equal among the various projects, the project with the __________ IRR would probably be considered the best and be undertaken first.LowestHighestNegativeZeroQ. All the points below are questions in the define phase tollgate, except _______Is there data to understand customer requirements?Has a similar problem been solved before?What is the project timeline?What have you done to ensure reliability of the measurement systems?Q. Which of the following statement is incorrect?Lean focuses on making the process fasterLean originated at Ford MotorsSix Sigma focuses on making the process accurateSix Sigma originated at MotorolaQ. Which of the following represents the correct sequence of steps in a DoE study?Select Design > Select Factors > Determine optimal settings of factors for desired response > Conduct experimentsDetermine optimal settings of factors for desired response > Conduct experiments > Select Factors > Select DesignSelect Factors > Determine optimal settings of factors for desired response > Select Design > Conduct experimentsSelect Factors > Select Design > Conduct experiments > Determine optimal settings of factors for desired responseQ. Which of the following statement(s) is incorrect?Every Six Sigma project will not use all the toolsSix Sigma only uses statistical toolsSix Sigma tools are applicable in all industriesAll of the aboveQ. __________ provides a quick look at the planned activities, schedule, allows for assessment of key resources and project performance against plan.Control chartGantt chartPlanning chartRun chartQ. The Alternate Hypothesis usually represents ____________the theory the researcher would like to provethe preconceived ideas of the researcherthe perceptions from the sample dataAll the aboveQ. “Six Sigma” as a process performance metric means ___________We can accommodate 6 standard deviations between the mean and the specification limitThe process width is ± 3 standard deviations from the meanThe specification width is 6 standard deviationsAll the aboveQ. With respect to DoE, “Block” for_________ factors and “Randomize” for__________factorsknown nuisance, unknown noiseunknown noise, known nuisanceknown nuisance, known noiseunknown nuisance, unknown noiseQ. Based on the table given below, what is the critical path for this project? ABCEFHABCEGHABDEGHABDEFHQ. With respect to control charts, which of the following is NOT correctly matched?Y-axis: Value of the metric under observationCenterline: Represents process averageControl limits: Placed at Process average ± Standard deviationX-axis: Time order in which subgroup data was collectedQ. Which of the following is NOT matched correctly?Repeatability: Variation in measuring equipment when measured by one appraiser in the same setting at the same timeBias: Difference between observed value and true valueStability: Accuracy of measurement at various measurement points of the measuring range in the equipmentReproducibility: Variation in measurement when measured by two or more appraisers multiple timesQ. Which of the following is correct?Sigma Level Short Term (Zst) uses overall standard deviationSigma Level Long Term (Zlt) uses within standard deviationSigma Level shift (Zshift) is the difference between Zwithin & ZoverallZwithin is always equal to Zoverall + 1.5Q. In which of the following charts will the Lower Control Limit (LCL) not be artificially set to zero, if the calculation of LCL gives a negative value?p chartc chartX-bar chartnp chartQ. A process is normally distributed with, USL = 24 and LSL = 18. It has a mean of 20, short-term standard deviation of 1 and long-term standard deviation of 1.5. What will be Cp, Ppk respectively?1, 0.671, 0.440.67, 0.440.67,0.67Q. In case of “Data Collection”, which of the following has the advantage of high data integrity and opportunity to seek clarification?Mystery shoppingOnline surveysFocus groupsAll the aboveQ. Which of the following can be used as a Visual Control?Charts, graphsSigns, digital readoutsColors, shapes, arrowsAll the aboveQ. In case of a perfect normal distribution ____________The mean, median and mode are the sameThe median does not existMean and median are same, but mode is differentMean is higher than medianQ. What is plotted on a P-chart?Number of defectivesPercentage of defectivesProportion of defectivesProbability of defectives (P-value)Q. Which of the following is NOT matched correctly?Scope: Provides project limitations with respect to process, time, budget, etc.Business case: Contains the role and responsibilities of the project team membersProblem statement: Highlights the pain areaTimelines: Provides expected time for completion of major milestonesQ. Quality team tracks the number of items that get rejected in the daily audits. This data follows ______________Normal distributionPoisson distributionBinomial distributionDiscrete-Uniform distributionQ. Two drugs A & B were evaluated for their effectiveness. However, drug A was tested only in individuals with <30 years age while drug B was tested only in individuals with >30 years age. In such a case the effect of the drugs and age of the individuals is said to be _______________RandomizedConfoundedFoldedReplicatedQ. A physiologist wants to determine whether a particular treatment has an effect on resting heart rate. The heart rates of 25 randomly selected people were measured. The people were then put on the treatment and measured again 6 months later. If the data follows normal distribution which is an appropriate test to compare the before and after treatment conditions?2 Sample t testPaired t test2 proportion testMann Whitney testQ. What is the formula for Defects Per Opportunity (DPO)?Defects/Units *1000000Defects/Opportunities*1000000Defects/OpportunitiesDefectives/OpportunitiesQ. All the statements below are false, except ____________In both Pp and Ppk, the lower the value, the betterCp is always equal to or smaller than CpkA Ppk below 1, indicates the process average is outside one of the specificationsThe Pp and Ppk values will be equal if the process is perfectly centeredQ. Measurement value = ?True valueTrue value + Measurement errorTrue value + Systematic errorTrue value + Calculation errorQ. For a linear relationship, the correlation coefficient is 0.9. What is the percentage of variation in Y that is explained by variation in X?0.81%81%0.9%90%Q. If the data is non normal, then which of the following is/are true with respect to process capabilityi. Process capability can be done using Box-Cox transformation ii. Process capability can be done using Johnson's transformationiii. Process capability cannot be done for non normal dataiv. Identify the non normal distribution that fits the data and perform capability analysis for non normal datai, iii, ii, iviiii, ii, iii, ivQ. The purpose of Toll Gate review is to _____________review progress and kick off the next phaseget a formal sign-off from the stakeholdersconfirm if the earlier phase was completed successfullyAll the aboveQ. When the market price of gold is high, so is the market price of silver. This indicates a strong positive correlation between the price of the two. Which of the following statement is the best take away from this example?Market price of gold going up is causing market price of silver to go upMarket price of silver going up is causing market price of gold to go upCorrelation always implies causationSale of both the precious metals might me caused by some other market variableQ. If the NPV of a prospective project is _______, the project should be acceptedPositiveNegativeZeroMore than 1.33Q. For a process in control, what is the theoretical probability that a single point on the X-bar chart will fall between the mean and plus one sigma?0.680.340.150.50Q. __________ is a graphical tool of choice to show frequency distribution of discrete data.Bar graphHistogramBox plotScatter plotQ. What resolution will you choose to perform a two-level fractional factorial design for 6 factors if 2 replicates are necessary and the budget doesn’t allow more than 20 experiments?Resolution IVResolution VIResolution IIResolution IIIQ. A control plan should have __________________Action plan for out of control conditionsAppropriate sample sizes and frequency of testingRisk mitigation plans to ensure X’s stay in controlAll the aboveQ. Which of the following statement regarding model reduction for 3 factors (A,B & C) is FALSE?Insignificant C can be dropped even if BC is significantInsignificant AB can be dropped even if A and B are significantAC can be significant even if A and B are insignificantIf ABC is significant, then no model reduction can be doneQ. Following image displays the Alias Structure for a Fractional Factorial Design. What is the resolution for this design?Resolution IIIResolution IVResolution VResolution VIQ. A call center monitors the count of daily abandoned calls. The number of calls received varies on a daily basis. Which of the following is an appropriate control chart to use?U chartI-MR chartNP chartP chartQ. Which of the following does NOT help to capture the VOC?SurveysFocus groupsTime and motion studiesInterviewsQ. Statements given below are true, EXCEPT:In Resolution III designs, the main effects are confounded with 2 factor interaction effectsIn Resolution IV designs, the main effects are confounded with 3 factor interaction effectsThe maximum resolution in fractional factorial designs is Resolution VLow resolution designs can serve the purpose of screening rather than optimization if we have many factorsQ. Which of the following pairs is correctly matched?Full factorial design: Changing one variable at a time (keeping others constant) to understand the impact on the outputTrial and Error: Randomly changing multiple inputs to observe changes to outputFractional factorial design: Running all factors at all levels and developing a modelOne-factor at a time: Running a subset of the full factorial designQ. If the p-value is less than the significance level, then _________We do not have enough evidence to reject the null hypothesisWe reject the alternate hypothesisThe results are statistically significantThe results are practically significantQ. Which of the following tool(s) can help break “Big Y’s/CTS parameters” into project Y’s?Tree DiagramProblem Definition TreeGoal Means DiagramAll of the aboveQ. A control chart that does not have any out-of-control condition is considered ___________, and the process is operating in a state of __________.stable, statistical controlstable, no non-conformancecapable, equilibriumcapable, statistical controlQ. All the statements below are true about X-bar and S chart, EXCEPT ____In the X-bar chart, the center line is the mean of the subgroup meansIn the S chart, the center line is the standard deviation of the subgroup standard deviationsIn the S chart, the center line is the average of the subgroup standard deviationsThe X-bar chart can be out of control, even if the S-chart is in controlQ. All the statements below are correct, except ___________________A Cp, Cpk value ≥ 1.33 shows that the process is capableA Cp, Cpk value = 1.0 means that the process barely meets the specificationA Cp, Cpk value < 1.0 means that the process is producing units outside the specificationsAbnormally high Cp, Cpk (> 3) shows that the specification is very tightQ. Which of the following are project selection tools?Benchmarking, Replication and BrainstormingPrioritization Matrix, Problem Definition Tree and QFDPugh Matrix, FMEA and Nominal Group TechniqueMistake Proofing, Statistical Process Control, Measurement System AnalysisQ. A document requires 10 essential entries for further processing. In a sample of 100 such documents, defects (missing entries/incomplete entries/incorrect entries) were evaluated. 20 defects were found in 2 documents. What is DPMO, DPU and Yield respectively?20000, 1, 98%20000, 0.2, 98%0.02, 0.2, 98%20000, 1, 90%Q. Control charts help us in all the following, EXCEPT:Validate that the process has improvedDetermine presence of special causesIdentify cause of non-conformitiesMonitor a process with timeQ. Which of the following is the best method to sustain the improvements post successful completion of a project?Mistake ProofingAuditsControl ChartsProcess training every 6 months for all emloyeesQ. A process has Zoverall = 1, Zwithin = 1.41 and Zentitlement = 1.53. Which of the following could potentially be the value of Zgoal?0.501.461.202.00Q. When speed is essential, and survival of the organization is at stake, which of the following approach is best suited for dealing with resistance to change?Education and communicationParticipation and involvementImplicit and explicit coercionFacilitation and supportQ. The operators of a manufacturing shop floor out a more orderly arrangement for tool storage and establish a schedule to maintain cleanliness daily. These improvements are best described by which approach to problem solving?5SVisual aidsPoka yokeFMEAQ. A tool that gathers large amounts of language data (ideas, opinions, issues) and organizes them into groupings based on their natural relationships is __________Affinity diagramGoal means diagramCorrelation diagramInterrelationship diagramQ. Which of the following is true while doing a Gage R&R study?It is recommended to even pick samples outside the specification limitsRandomize the samples during the studyInvolve appraisers who perform the measurements in the process on a regular basisAll of the aboveQ. A sales team in a company is doing a project on improving the days outstanding on invoices to customers. We would not want the team to achieve lower days outstanding (lower the better) by offering discounts on the invoices. What will be a suitable secondary metric?Average days outstandingAverage discount offeredCustomer satisfaction levelsAverage accounts receivableQ. Turnaround time (TAT) data collected shows normal distribution with a mean of 5 and a standard deviation of 1. What are the chances that the TAT will be between 4 and 6?68%95%99%Not enough information to calculateQ. A company has hired a Master Black Belt to conduct in-house Black Belt trainings. The MBB conducts one training per month. The training is 15 days long. The MBB generates reports and dashboards for the rest of his work time. Which of the wastes in Lean does it represent?Over productionOver processingUnder Utilized Human PotentialMotionQ. When the VP of a small company announced to his managers that the company would implement a flexible working schedule for all employees, numerous rumors began to circulate as none of them knew what flexible working hours meant. One rumor, for instance, suggested that flexible hours meant that most people would have to work whenever their supervisors asked them to—including evenings and weekends resulting in high resistance. It never occurred to the VP, that he might run into such a resistance. What is the most appropriate reason for this resistance?Parochial self-interestMisunderstanding and lack of communicationLow tolerance to changeAll the aboveQ. Which of the following is NOT a question in the Control phase tollgate review?Has the Financial Benefit Summary been completed? Has the Resource Manager reviewed it?Has the necessary training for process owners/operators been performed?Have “lessons learned” been captured?Has the scope of the project been finalized?Q. In case of automated data collection with no human intervention in the measurement, _______________operational definition is not requiredMSA is not requiredLogical validation can be performedMSA is impossibleQ. In an Interrelationship diagram, the box that has the most outgoing arrows is _________________called the “Driver”often a key cause of the problema potential area for initiating a projectall of the aboveQ. _______________helps quality professionals translate broad customer needs into specific, actionable and measurable project metrics.Pugh MatrixMulti-votingSIPOCCTQ drill down treeQ. Targets for conflicting CTQ's from a QFD can be optimized to get the optimal output using which of the following tools?Design of ExperimentsDe Bono six thinking hatsBrainstormingPugh MatrixQ. Which of the following is introduced in a design to check if the relationship between X & Y exhibits curvature (non-linearity)?Center point(s)Block(s)RandomizationFoldingQ. All the following statements are true, except _________DMADV is mostly used when a process or a product is not in existence and one needs to be developedDMADV can be used if the current product/process exists, has been optimized but still doesn’t meet customer/business expectationsDMADV can be used in research and developmentDMADV is a reactive approachQ. Which one of the following is NOT a step in John Kotter’s eight step change management plan?Create short term winsMake change stickIdentify resistors to changeCreate a sense of urgencyQ. Which of the following is not a part of the Control Plan?Mistake proofing systemsList of critical X'sProject CharterReaction PlanQ. Towards the final stages of the LSS project it is important to prepare the lessons learned document because ____________________The items captured here will help shape and refine how future projects are performedAnytime an action has an unexpected outcome, the event should be logged to make stakeholders aware for future issues of the same typeDocumenting helps in avoiding “recreating the wheel’ every timeAll the aboveQ. Which of the following technique may be used for both solution generation and evaluation?BrainstormingNominal Group TechniqueBenchmarkingMulti-votingQ. Errors in invoice’s are tracked on a daily basis. On an average each invoice has 0.5 errors. This data follows ___________ distribution?NormalPoissonBinomialUniformQ. Which one of the following is NOT correctly matched to its purpose?Repetition: Understand and eliminate experimental errorsCenter point: Understand the effect of hard-to-change factorsBlocking: Technique to eliminate the effect of known noise factorsRandomization: Eliminate effects of unknown noise factorsQ. Leading and managing Six Sigma projects is a primary responsibility of ___________Black BeltProject team membersChampionMaster Black BeltQ. Which of the following combinations is incorrect?Nominal (Binary) data from appraisers – Fleiss’ Kappa statisticsOrdinal data from appraisers - Kendall’s coefficient of concordanceGage R&R- % Team accuracyNone of the aboveQ. With respect to a Balanced Scorecard, which of the following is NOT true?It includes only financial metricsIt enables organizations to focus on their vision and strategy and translate them into actionsIt is a combination of leading and lagging metricsBalanced scorecard approach can be used for selection of project metricsQ. If the main effect of factor "A" is 10, it means ___________When A changes from high to low, the response on an average increases by 10When A changes from low to high, the response on an average increases by 10Both of the aboveNone of the aboveQ. What is the best tool to understand the relationship between call time (continuous variable) and customer response (Yes/No) to the question “Are you satisfied with the resolution?”?Ordinal Logistic RegressionBinary Logistic RegressionNominal Logistic RegressionMultiple Linear RegressionQ. Which of the following statement is INCORRECT?For a large dataset, calculation of standard deviation is preferred over rangeStandard deviation signifies the central tendency of the datasetCalculation of range uses only two values from the datasetFor a dataset with outliers, the inter-quartile range is often calculated instead of the rangeQ. With respect to Pearson’s correlation coefficient, which of the following is NOT true?The range is from -1 to 1It is the square root of the coefficient of determination (for linear relationship)Value of ‘-0.1’ mean perfect negative correlationValue of ‘0’ means no correlationQ. A team wishes to assess the potential problems in the process. Which of the following tools should the team use?PFMEAVSMQFDSIPOCQ. Which of the following statement is true about variance?It is the square of standard deviationIt has the same unit as that of the meanIt has the same unit as that of the dataIt is a measure of central tendencyQ. Identify the correct sequence for conducting a Gage R&R study.Select 3-5 parts > select the operators > collect data > calculate Gage R&RSelect the operators > select 3-5 parts > calculate Gage R&R > collect dataCalculate Gage R&R > select the operators > select 3-5 parts > collect dataSelect the operators > collect data > select 3-5 parts > calculate Gage R&RQ. Which of the following is true for variable data control charts?If the variation chart is out of control, then the control limits on the mean chart will be inaccurate and may falsely indicate an out-of-control conditionWhen the variation chart is in control, you can be sure that an out-of-control mean chart is due to changes in the process centerChart showing measure of dispersion should be reviewed firstAll the aboveQ. All the examples below are of discrete data, EXCEPT _________________Number of complaintsHoursNumber of defectsNumber of tickets raisedQ. What is an Operational Definition?It is a clear, concise and unambiguous definition of the CTQIt provides a unified understanding of the data for all involved before the data are collectedIt includes the formula (if any) that is used to calculate the metricIt is all of the aboveQ. “Data collection for primary and secondary metrics to gain insight and establish baseline”, is the main purpose of ______________Define phaseControl phaseAnalyze phaseMeasure phaseQ. Which of the following statements is incorrect?DoE is done preferably using historical dataMultiple Regression can be run on available historical dataOne-factor at a time (OFAT) is a better approach than Trail and ErrorDoE is a better approach than One-factor at a time (OFAT)Q. Given process average = 1.65, standard deviation =0.05, assuming statistical control and a normal population, what proportion of the population will meet specifications of 1.65 ± .05?68.27 %99.73 %31.73 %100.0 %Q. Which of the following is an example of a pilot?Prototypes developed for early evaluation by end usersImplementation at one work area/regionTest marketingAll the aboveQ. You want to create and maintain an organized and clean workplace. Which of the tools is best suited for this?5SKaizenSix SigmaFMEAQ. Fishbone diagrams cluster causes into categories. Which of the following is NOT normally used as a category?MethodMarketManMeasurementQ. What is the probability of finding a real difference if beta=10%?90%10%5%95%Q. September 23, 1999, after a 286-day journey from Earth to Mars, NASA lost the $125 million Mars Climate Orbiter, after the spacecraft entered into an orbit 100 kilometers closer than planned. NASA used the metric system, while its partner Lockheed Martin, the organization that designed the navigation system, used English units. This is a classic example of the absence of____________an operational definitiona measurement systemdue diligencerisk analysisQ. Which of the following is a “living” document?Project CharterProcess MapProcess FMEAAll the aboveQ. Which of the following hypothesis test CANNOT be used to compare pre and post improvement performances?2 sample t testPaired t test2 Proportion testAnderson Darling Normality testQ. Difference between p-chart and np-chart is _____________p-chart is for defectives data while np-chart is for defects datap-chart plots proportion of defects while np-chart plots counts of defectsp-chart is used for defectives data with fixed sample size, while np-chart is for variable sample sizep-chart is used for defectives data with variable sample size, while np-chart is for fixed sample sizeQ. Which of the following statement is NOT true?The long term variation is generally higher than the short term variationShort-term capability is calculated using pooled standard deviationMeasurement system reliability does not affect process capability assessmentFor a short interval, the variability is often relatively small due to a focus on specific equipment, a set of trained people, homogeneous material, the same measuring system, etc.Q. Six Sigma Level can be achieved by having _____________less than 3.4 defects per million opportunities (after adjusting for the sigma shift)six levels of testing before releasesix times better quality than baselineSix Nines Quality (99.9999%)Q. A financial services institution wants to determine if their average loan processing time differs from a competitor’s claim of 5 hours. The analyst randomly selects 20 loan applications from the past 1 month and calculates the time between loan initiation and notification to customer about the institution’s decision. (Assume that the processing time data follows normal distribution). Which hypothesis test can be deployed?1 Proportion test1 Sample t testPaired t test1 Sample z testQ. Non-parametric statistical methods (Mood's Median, Mann Whitney etc.) are preferred when ______________You do not know the underlying distribution of the populationYour area of study is better represented by the medianYou have a sample size of less than 10 and hence might not be able to ascertain normalityAll of the aboveQ. A team’s goal is to improve information flow in a payroll function. They make 25 Post-It notes, each listing an issue for further investigation. After some discussion, they group them into four categories: mandated record keeping, privacy concerns, insurance concerns, and transfer concerns. This grouping process is best described by which approach to problem solving?Tree diagramAffinity diagramFishbone diagramInterrelationship diagramQ. Which of the following is true for a NP chart?The chart plots number of defectivesThe center line is the average number of defectsControl limits are raggedAll the aboveQ. Control limits of which charts often appear ragged?np-chart, p-chart, c-chartc-chart, u-chartnp-chart, c-chartp-chart, u-chartQ. If a project investment amounts to $1,000,000 and the return estimated is $100,000. What is the ROI?0.01%10%11%Not enough information to calculate ROIQ. Which of the following DoE can also be used as a screening design?Completely randomized full factorial design with center pointsReplicated factorialMultilevel factorialFractional factorialQ. ___________ is a Japanese term for “change for improvement” or improving processes through small incremental steps.KanbanKaizenIshikawaGembaQ. Which one of the following is not a primary responsibility of the process owner?Provide process knowledgeReview and approve changesImplement change and ensure sustenanceApprove completed projectsQ. While performing Attribute Agreement Analysis (AAA) which of the following is true?It can only be performed if the standard is knownAppraiser Repeatability can be checked only if each appraiser evaluates each sample at least twice in random orderAppraisers should know in advance that the activity will be performedSamples should be given in a non-random order to avoid data collection errorsQ. Which of the following is NOT true about Goal-Means diagram?It is a type of Tree diagramIt starts with a broad goal and fans out into means of accomplishing the goalIt is an excellent tool to drill down root causesIt helps identify the project 'Y'Q. Which of the following statements is TRUE?As the difference to be detected becomes large, required sample size becomes small (Other things kept constant)As the standard deviation decreases, required sample size increases (Other things kept constant)As power decreases, required sample size increases (Other things kept constant)As Alpha increases, required sample size increases (Other things kept constant)Q. What is the correct sequence for activities given below?Measurement System verification > Process stability evaluation > Rational subgrouping > Process capability evaluationProcess stability evaluation > Rational subgrouping > Measurement System verification > Process capability evaluationMeasurement system verification > Rational subgrouping > Process stability evaluation > Process capability evaluationRational subgrouping > Measurement System verification > Process capability evaluation > Process stability evaluationQ. What is the alternate hypothesis for Kruskal-Wallis test?All medians are equalNot all means are equalAt least one mean is differentAt least one median is differentQ. Which of the following metric is NOT a part of the “Customer” leg of the Balanced Scorecard?Customer satisfaction levelsReturn on InvestmentReferral ratesRetention ratesQ. Which of the following statement about Six Sigma is NOT true?Six Sigma as a set of tools includes both qualitative and quantitative techniques used to drive process improvementDMAIC is the only Six Sigma methodology adopted and recognized by the IndustrySix Sigma quality performance means 0.001 DPMOSix Sigma tools can also be used when one is not doing a six sigma projectQ. Which of the following statement is true?A low detection rank indicates higher chance of detectionHigher chance of detection reduces the severity rankHigh severity means that the probability of failure occurring is highImproving detection will bring down the occurrence rankQ. Which of the following statement is incorrect?Cost saving projects affect the bottom lineCost avoidance projects are considered as soft dollar savingsBenefits from budget impacting cost avoidance projects are intangibleIf revenue growth is achieved as an outcome of a project, it is considered as hard dollar savingsQ. Which of the following is true for Poka Yoke?Human errors are avoidedShutdown, Control and Warning are types of Poka YokeEven if defects occur, they do not move to the next stepAll the aboveQ. Amool Milk Powder is sold in packets with an advertised mean weight of 500 gm. The standard deviation is known to be 20 grams. The weight data follows normal distribution. A consumer group wishes to check the accuracy of the advertised mean and takes a sample of 60 packets finding an average weight of 490 g. Which hypothesis test can they deploy?1 Sample t test1 Sample z test1 Sample sign test1 Proportion testQ. The high-level process map at the Define stage should be __________the “As-is” processmade by the process owner or the SMEsame as the one documentedall of the aboveQ. One factor at a time studies would not be able to identify interactions between the factors as compared to full factorial designs. The statement is ________FalseTrueTrue, only if center points are included in the designCannot comment until resolution is knownQ. The project closure and benefit realization needs to be signed off by _______Project Sponsor and SMEProcess Owner and Black BeltFinancial Analyst and Master Black BeltProject Sponsor and Financial AnalystQ. We have marketing data that contains the impact of three advertising medias (facebook, youtube and instagram) on sales. What approach can be used for predicting sales revenue from the budget invested in the three advertising medias?Multiple linear regressionBinary logistic regressionCh-square testDesign of ExperimentsQ. Which of the following is NOT an attribute of the “FORM” stage of team formation?Group is going through the “honeymoon” periodNot much work is accomplishedTeam members exhibit high agreement on initial discussion topicsTeam members resolve their conflictsQ. Which of the following is an example of a strong Poka Yoke?Shape of the SIM card ensuring the card fits only in one orientationCellphone alerting the user if battery goes below 20%Fire warning to evacuate the buildingNotification before sending the email asking “There is no title. Send anyway?”Q. What strategy should be used for “Low importance and high commitment” stakeholders?Minimize dependency on this type of stakeholderProtect and defend these stakeholdersMonitor these stakeholders, but don’t spend resources on themThese stakeholders are capable of sabotaging plans, escalating problems and are considered high riskQ. An economist wants to determine whether the monthly energy cost for families has increased from the previous year’s average of $50. An increase of at least $5 is considered meaningful and the estimated standard deviation is $3. To detect a difference of 5 with a power of 0.9, the economist needs to collect a sample of minimum _______ observations for the 1-sample t-test.7523Q. Rework, over-production, inventory, and motion are all examples of __________Noise factorsWasteValue-addsNuisance factorsQ. A production manager would like to know whether there is an association between the shift (1/2/3) and the machine used (1 vs 2) with respect to defective items produced. An appropriate hypothesis test would be?2 Proportion testChi-Square test2 Sample t testMann Whitney testQ. Gage R&R study for a measurement system gave the following outcome. What is a suitable inference?Measurement System is accepted but with cautionMeasurement System is acceptedMeasurement system is rejectedMore data is requiredQ. Below is the result of a DoE. Which of the effects are significant? (Select the most appropriate option)A, B, AB, ABCA, B, CA, C, ACA, C, BCQ. DMAIC is NOT a suitable methodology if ___________the problem is chroniccauses are not clearly understoodwe are designing a new processoptimal solution is not knownQ. What is the number of runs that would be required if we had 3 factors, 2 levels, 2 replicates of the corner points, 3 Center points and 1 block?33192722Q. Which of the following is true for a standard normal distribution?Mean = 0, Standard deviation = 1Mean = 1, Standard deviation = 1Mean = 0, Standard deviation = 0Mean = 1, Standard deviation = 0Q. Which of the following does NOT warrant an action?Process in statistical control and meets specificationsProcess not in statistical control but meets specificationsProcess in statistical control but does not meet specificationsProcess not in statistical control and does not meet specificationQ. Which of the following is true with respect to the interaction effect plot if there is an interaction effect between two factors?There will be two overlapping linesThere will be two parallel linesThere will be two non-parallel linesNone of the aboveQ. The disadvantage of using Pugh Matrix is ___________A datum is required to create the matrixEach alternative is compared to the datum but not to other alternativesThe extent of bettering or worsening is not factored in the calculationsAll the aboveQ. Which of the following statement is true?If the process behaves consistently over time, then we say that the process is capableKnowing about process stability makes us rest assured about process capabilityProcess capability assessment should only be performed after first demonstrating process stabilityProcess stability is a measure of the ability of the process to meet specificationsQ. A research and development lab wanted to check the effectiveness of three types of fabric stain removers (A, B & C). They recorded the time required for 50 samples for each of the stain removers. What hypothesis test can the research team consider to understand if one of the products is better than the others? (The time required to remove stains follows normal distribution)One-way ANOVATwo-way ANOVANested ANOVAChi-square testQ. The average defective rate is 10%. Probability calculation was done for a sample of size 10. Result is displayed below. Choose the most appropriate inferenceProbability of getting at least one defective is 0.65Probability of getting zero defective is 0.65Probability of getting at least one defective is 0.35Probability of getting up to one defective is 0.35Q. Likert-type data is an example of ________________Continuous dataNominal dataOrdinal dataBinary dataQ. Primary responsibility of the Master Black Belt is _______________Allocation of resources for projectsCoach Six Sigma GB’s and BB’sProvide process expertiseReward successful projectsTime is Up! Time's up Author Recent Posts Vishwadeep Khatri Latest posts by Vishwadeep Khatri (see all) Online Lean Six Sigma Green Belt Certification - December 28, 2020 Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. 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