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Mayank Gupta

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Everything posted by Mayank Gupta

  1. Sourabh Nandi and Ransingh have provided the best answer to the question for highlighting the method to evaluate a classification problem, ways to address class imbalance issues and providing multiple examples.
  2. Aritra Das Gupta has given the best answer to this question for correctly explaining the effects of a higher and a smaller alpha along with many relevant examples.
  3. All the published answers are correct and are winners for this question. Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  4. While all published answers have clearly and correctly defined Golden Ration, Natwar Lal has given the maximum number of examples for applicability in various businesses and hence has been selected as the best answer. Congratulations!
  5. Hi Junaid Feel free to convert DPMO to DPBO (Defects Per Billion Opportunities) if you feel like. DPMO is only a unit of measurement and hence can be changed if required. Having said that, I guess a more practical question could be why did someone come up with per million and not billion. In my opinion, it is based on the highest magnitude imaginable at the time of inception. Six Sigma got started in 1980s at Motorola and maybe they could imagine million opportunities better than billion opportunities
  6. Joyal has clearly explained the problems arising due to high dimensions and hence it has been selected as the best answer. Congratulations! Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  7. Sourabh Nandi has provided a holistic view of block diagrams and hence is selected as the best answer.
  8. Aritra Das Gupta and Joyal are the winners for this question for highlighting the interactions between the three constraints using various scenarios. Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  9. The best answer to the question has been provided by Joyal and Sourabh Nandi. Congratulations to both of them! Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  10. All published answers are excellent and it is difficult to choose one over the other. All have highlighted the usage along with a unique example and hence all published answers are winners for this question!
  11. While all the published answers are correct, the best answer has been provided by Sourabh Nandi for describing the effect, its causes and ways to overcome it and by Aritra Das Gupta for highlighting three methods that a supervisor can use. Prakash Mesta's answer is a must read for the linkage of Dunning Kruger effect with Lean Six Sigma.
  12. Premkumar T is the winner for this question for describing both the concepts and also providing examples of how the contradiction between economies of scale and customization can be managed. Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  13. "In God we trust, all others must bring data" - W. E. Deming
  14. 1. Soft skills and good professional relations can help you get the data. 2. This is how I would do it - I would model the longest branch as the main branch, however I will still capture the other various paths as well 3. Rework can be easily depicted using the rework symbol in a VSM. You will have to mention the % of rework Apart from the above, the following should help you reduce the time for launching a new product a. Change Management principles b. Identify the handoff points among the 12 departments. Most of the delays happen at handoffs. An
  15. Hello Andrew You may present your case basis the transaction error % (effectiveness or accuracy ratio). Alternatively, you may also simply look at the number of transaction errors on a daily/weekly/monthly basis. This should be done only if the total number of transactions are fixed. if the total transactions vary, then looking at standalone numbers might be mis-leading.
  16. Hello Keerthi Both Pareto and Pie chart (in fact all graphs) are only data visualization tools. Having said that, each chart has a specific purpose Pareto chart - shows the rank order in the data (by sorting the data in descending order) Pie chart - shows the data as 'part of the whole pie' (data may not be sorted in descending order) Pareto's 80/20 rule is a prioritization rule and you may apply it to a pie chart as well (for that matter you may apply it to a bar chart as well). Another reason why a Pareto might be preferred is if th
  17. Sampling Inspection - inspection done with the sample size as originally determined basis the objective of the study. Reduced Inspection - inspection done with a sample size smaller than the original sample size. This is only preferred if the quality has been consistently improving.
  18. Hello Kishan Some guidelines 1. Objective is to improve the process timelines - Lean 2. Objective is to reduce the number of defects or improve quality - Six Sigma 3. Project is best suited for Lean Six Sigma approach if the cause and solution are unknown. If any or both of these are known, it is suitable for Kaizen 4. Relatively smaller improvements - Kaizen Apply the above filters and then use a project selection criteria to select one project from the many potential projects.
  19. There are two best answers to this question. Sudhir Gayakwad and Sourabh Nandi are the joint winners. Congratulations to both. Mohamed Asif's answer is a must read to see how Andon is used in healthcare. Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  20. Both the published answers have been selected as the best answer to this question. Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  21. Sourabh Nandi has provided the best answer to this question by providing business applications of Venn Diagrams along with an example. Congratulations!
  22. Sourabh Nandi has provided the best answer to this question for providing the different ways in which Heijunka can be implemented. Another very common tool used for implementing Heijunka is called a "Heijunka Box". Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  23. Meet Maheshwari has provided the best answer to this question by providing an example for divergent and convergent thinking. Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  24. Everyone has given great answers, however the best answer has been given by Raj Saxena for listing out what actions the organizations can take at each stage of the curve. Strongly recommended to read all answers.
  25. Sudhir Gayakwad and Raj Saxena are the joint winners for this question. Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
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