Lean Six Sigma Black Belt Sample Paper: Measure

1. Which of the following statements is NOT true about Attribute Data:

Attribute Data can be changed into Continuous Data, whenever required

Attribute Data cannot be made continuous even if measured at regular intervals

Attribute data can be counted, ranked or sorted but not added, subtracted or averaged

describes a named attribute of a process

2. Select the logical sequence of various steps followed in the Measure phase of a DMAIC project.ew question!

Writing the Operational Definition - Measuring Baseline Capability – Measurement System Analysis - Developing a Data Collection Plan

Writing the Operational Definition – Developing a Data Collection Plan - Measurement System Analysis - Measuring Baseline Capability

Developing a Data Collection Plan - Measuring Baseline Capability – Measurement System Analysis - Writing the Operational Definition

Any sequence can be followed

3.  VOC- Room is too hot. If the temperature is more than 24, it will be hot and less than 18 will be too cold. Why can we not keep it at 21? What is the LSL, USL and the Target?

18, 24, 21

24, 18, 21

18, 21, 24

Cannot be said

4. Select the correct statement while considering AAA:

Team Reproducibility is higher than Appraiser Repeatability

Team Accuracy is lower than Repeatability and Reproducibility

Appraiser Repeatability is lower than Team Accuracy

Appraiser Repeatability is lower than Team Accuracy

5. The pull down menu for AAA in Minitab is

Stat > Quality Tools > Create Attribute Agreement Analysis Worksheet

Stat > Quality Tools > Gage Study > Attribute Gage Study (Analytic Method)

Stat > Quality Tools > Attribute Agreement Analysis

Stat > Quality Tools > Gage Study Type 1

6. In context of Measurement System Analysis, which of the following statements is NOT true:

Measurement System Variation can be caused by Variation due to Operator or Variation due to Gage

Measurement System Variation should be as large as possible

Measurement System Variation should be as low as possible

Variation due to Gage could be classified as accuracy error, precision error, stability error or linearity error

7.  In an inspection of 200 projectors, 5 defects are found in 3 projectors and remaining projectors have no defects. What is the DPU and Zlt?

0.050, 1.66

0.1, 1.31

0.025, 1.97

0.20, 0.91

8. Which of the following statements about the Process Capability and performance Indices is NOT true:

Cpk is always higher than Ppk

Pp can be greater than or equal to Ppk

Cp can be greater than or equal to Cpk

Ppk is always higher than Cpk

9. A dye manufactures 10mm diameter bolts. If the bolt dimensions are more than +/- 0.01mm, they do not fit. The standard deviation measured is 0.05 and the mean is 10mm. What is the Sigma Level (zlt)?

0.5

-1.0

0

Cannot be calculated

10. Considering the various Sigma Level calculations, arrange in the most plausible ascending order:

ZST, ZLT, ZEnt, Zgoal

ZLT, ZST, Zgoal, ZEnt

ZEnt , ZST, ZLT, Zgoal

ZLT, ZEnt , ZST, Zgoal

11. A quality team does visual inspection for scratches on the phone screen. If there is a scratch, the phone is deemed as defective. What is the best method to be used to calculate current performance level:

DPMO

Yield

DPU

RTY

12. What is the Rolled Throughput Yield for the following process – 100 candidates apply for a job, out of which 75 clear the written test. Out of the 75, 50 clear the interview, all 50 are given the job offer. 35 candidates join.

25%

45%

35%

55%

13. Which of the following elements describe Operational Definition:

1. It ensures common, clear and consistent understanding of a measure


2. It provides an air tight definition of a variable


3. It translates general understanding of a variable to specific


4. It helps impress the stakeholders

i), ii) and iii)

i), iii) and iv)

i), ii), iii) and iv)

iii), iv) and v)

14. Interpret the outcome for Attribute Agreement Analysis performed on Ordinal Data Set. Assume that there is no standard score.

The Measurement System is acceptable

The Measurement System is not acceptable

The Measurement System can be accepted with caution depending on your process

Cannot be said

15. Interpret the results for Gage R&R from the outcome on the sessions window:

The Measurement System is acceptable

The Measurement System is not acceptable

The Measurement System can be accepted with caution depending on your process

Cannot be said

16. Using the provided information, calculate the Sigma Level to be communicated to the customer of a process. The USL is 24, LSL is 18, Mean is 21 and Standard Deviation is 2.0

1.19

2.11

2.61

Cannot be said

17. Select the statement that is NOT TRUE for short term and long term performance:

Short Term Performance involves sample data whereas long term data involves population data

Short term performance includes only common cause variation

Short term performance calculation uses the within subgroup variation

Short term performance does not use rational subgrouping

18. 500 projectors were inspected for 5 characteristics each. 150 defects were observed. What is the estimated short term sigma level?

3.05

2

6

1

19. Using defectives data, the average yield of a process is 95%, calculate the long term Z value:

3.14

2.14

1

1.64

20. Cpk=0 means

The process center has moved to one of the specification limits

The process mean is zero

The process has zero variation

The process cannot be improved any further

21. Estimate the sigma level for a process which has Specification Width twice as much as the Process Width

3 sigma

1.5 sigma

4 sigma

6 sigma

22. Which of the following statements about NOT NORMAL data is true:

It is always erroneous data

It is not the output of a well-controlled or a natural process

It should never be used for further analysis

None of the above

23. Which of the following statements is NOT True about Measurement System Analysis

The project cannot move forward unless the Measurement System is acceptable

If the Measurement System is not acceptable, we can move to the next phase and not share the Measurement System Analysis with the stakeholders

Measurement System Analysis is performed more than once in a DMAIC lifecycle

Measurement System Analysis is best done without prior intimation to the operators

24. Which of the following is not an objective of the Measure phase:

Finalizing Performance Standards for CTQ Y

Completing Measurement System Analysis

Creating a Control Plan

Measuring Current Performance

25. Attribute Agreement Analysis is:

Generally used when the data is discrete

Not used for Ordinal data

Generally used when the data is continuous

Not possible in the absence of a standard score

26. Which of the following statements is NOT true:

As variation increases, Sigma Level decreases

As the mean moves closer to the center of the specification limits, the Sigma Level increases

As the number of defects increase, the Sigma Level decreases

Variation and mean do not impact the Sigma Level of a process

27. In order to basket each ball, the player’s throw must be

Accurate

Precise

Accurate and Precise

Either accurate or Precise

28. If a weighing scale shows correct weight between the 0-30kgs range, but shows an error of 5kgs in the 30-100kg range, what kind of Gage Error is it?

Stability Error

Linearity Error

Bias

Accuracy Error

29. If all appraisers agree with each other but do not agree with the standard, what is the possible action:

Train one of the appraisers

Train the expert

Explore the need to change the measurement system

None of the above

30. Instead of using the approximation of 1.5 shift, Z shift can be computed for the following type of data:

Defects

Defectives

Yield

Continuous

31. If Pp=1.5 and Ppk=0.5, which of the following statements is True:

The process needs to be addressed for being off-centred but not for variation

The process needs to be addressed for variation but it is centred

The process needs to be addressed both for variation and off centeredness

The process need not be addressed for variation or centredness

32.  If it is not practical or required to do Measurement System Analysis in industries such as contact centers, which tool will you use to validate the measurement system:

Logical Validation

Attribute Agreement Analysis

Continuous Gage R&R

Analytic Gage R&R

33. Which of the following is not a deliverable of Measure phase?

Measurement System Analysis

Selecting the project team

Assessing Baseline Capability

Creating Data Collection Plan

34. Which of the following will use Crossed Design for Continuous Gage R&R Assessment:

Blood Test

Car Crash Test

Diameter of a bolt

Customer Satisfaction Rating for a phone call

35. Which of the following statements is NOT true:

Cp=Cpk implies that the process is centred

Cpk<0 implies that a defect has occurred

Cp is always higher than Cpk

Cpk is always less than or equal to Cp

36. The average turnaround time for resolving a problem ticket is 10 days and standard deviation is 1 day. What is the probability that we will be able to resolve a problem within 11 days? (Assume data follows normal distribution)

84.13%

95.68%

99.73%

Cannot be calculated

37.  For ordinal data, which of the following will indicate the degree of alignment between different operators/assessors:

Kappa Value

Kendal’s Coefficient

Number of Distinct Categories

% Study Contribution