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Showing results for tags 'i-mr chart'.
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Z-MR Short Run Chart
Vishwadeep Khatri posted a question in We ask and you answer! The best answer wins!
Q 566. Domino's promises delivery of pizza within 20 minutes. It is tracking the delivery time of each order to check the stability of the process. Each order is different with respect to items ordered, delivery location etc. The team has suggested to use either the Individual Moving Range (I-MR) or Z-MR (Standardized Individual Moving Range) control chart. Which control chart is more suitable here given that each order is different from the previous one? Why do you think it is more suitable? Note for website visitors - This platform hosts two questions per week, one on Tuesday and the other on Friday. All previous questions can be found here: https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/. To participate in the current question, please visit the forum homepage at https://www.benchmarksixsigma.com/forum/. The question will be open until the following Tuesday or Friday evening at 5 PM Indian Standard Time, depending on the launch day. Responses will not be visible until they are reviewed, and only non-plagiarised answers with less than 5-10% plagiarism will be approved. If you are unsure about plagiarism, please check your answer using a plagiarism checker tool such as https://smallseotools.com/plagiarism-checker/ before submitting. All correct answers shall be published, and the top-rated answer will be displayed first. The author will receive an honourable mention in our Business Excellence dictionary at https://www.benchmarksixsigma.com/forum/business-excellence-dictionary-glossary/ along with the related term. Some people seem to be using ChatGPT to find forum answers. This is a risky approach as ChatGPT is error prone as our questions are application questions (they are never straightforward). Have a look at this funny example - https://www.benchmarksixsigma.com/forum/topic/39458-using-ai-to-respond-to-forum-questions/ -
Q 561. I-MR, Xbar-R, Xbar-S: These are three control charts for continuous data. All the three have 2 control charts each. Why do we have 2 control charts in each one of them? What is the order in which these 2 control charts should be studied and why? Explain with illustrations. Note for website visitors - This platform hosts two questions per week, one on Tuesday and the other on Friday. All previous questions can be found here: https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/. To participate in the current question, please visit the forum homepage at https://www.benchmarksixsigma.com/forum/. The question will be open until the following Tuesday or Friday evening at 5 PM Indian Standard Time, depending on the launch day. Responses will not be visible until they are reviewed, and only non-plagiarised answers with less than 5-10% plagiarism will be approved. If you are unsure about plagiarism, please check your answer using a plagiarism checker tool such as https://smallseotools.com/plagiarism-checker/ before submitting. All correct answers shall be published, and the top-rated answer will be displayed first. The author will receive an honourable mention in our Business Excellence dictionary at https://www.benchmarksixsigma.com/forum/business-excellence-dictionary-glossary/ along with the related term.
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Continuous Data and SPC
Vishwadeep Khatri posted a question in We ask and you answer! The best answer wins!
Q 560. Imagine a 24x7 water bottling plant. The work is done in 3 shifts. QC team wants to check the consistency of the level of water being filled in each bottle. For this they pick 1 bottle every hour from the production line and check the water level. This implies, they pick 8 bottles every shift and 24 bottles every day. Which control chart (I-MR chart, Xbar-R chart, Xbar-S chart) should be used here for checking process stability? Support your answers with relevant illustrations. Note for website visitors - This platform hosts two questions per week, one on Tuesday and the other on Friday. All previous questions can be found here: https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/. To participate in the current question, please visit the forum homepage at https://www.benchmarksixsigma.com/forum/. The question will be open until the following Tuesday or Friday evening at 5 PM Indian Standard Time, depending on the launch day. Responses will not be visible until they are reviewed, and only non-plagiarised answers with less than 5-10% plagiarism will be approved. If you are unsure about plagiarism, please check your answer using a plagiarism checker tool such as https://smallseotools.com/plagiarism-checker/ before submitting. All correct answers shall be published, and the top-rated answer will be displayed first. The author will receive an honourable mention in our Business Excellence dictionary at https://www.benchmarksixsigma.com/forum/business-excellence-dictionary-glossary/ along with the related term.