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Showing results for tags 'measurement system analysis'.
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Q. 167 While analyzing the XBar R Chart in Gage R&R Output, a sound measurement system will have more than 50% of the data points falling outside of the control limits. It is intuitively the reverse of what we want to see (data points to be inside the control limits for a well controlled process). Explain this seeming aberration. Note for website visitors - Two questions are asked every week on this platform. One on Tuesday and the other on Friday. All questions so far can be seen here - https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-ques
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Kappa Value/ Kendall’s Coefficient
Rupinder N posted a question in We ask and you answer! The best answer wins.
Q. 166 Kappa value is used to make inference about soundness of a Measurement System when Attribute Data is used. Kendall's coefficient is used to infer the soundness of Measurement System when ordinal Attribute Data is used. If one used Kappa value to make inferences for an Ordinal Attribute Data set, what errors are likely to happen? Note for website visitors - Two questions are asked every week on this platform. One on Tuesday and the other on Friday. All questions so far can be seen here - https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-quest -
Q. 143 Repeatability is considered a pre-requisite for Accuracy assessment when we deal with Attribute Agreement Analysis but it is not so when we work with Gage R&R for variable (continuous) data. Why is it so? Note for website visitors - Two questions are asked every week on this platform. One on Tuesday and the other on Friday. All questions so far can be seen here - https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/ Please visit the forum home page at https://www.benchmarksixsigma.com/forum/ to respond to the lat