An X control chart with 3-sigma control limits and subgroup size n = 4 has control limits

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An X̅ control chart with 3-sigma control limits and subgroup size n = 4 has control limits UCL = 48.75 and LCL = 40.55.

(a) Estimate the process standard deviation.

(b) Does the response to part (a) depend on whether r or s was used to construct the X̅ control chart?

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Applied Statistics And Probability For Engineers

ISBN: 9781118539712

6th Edition

Authors: Douglas C. Montgomery, George C. Runger

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Question Posted: Jul 02, 2018 05:44 AM

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An X control chart with 3-sigma control limits and subgroup size n = 4 has control limits

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a The difference Therefore because the limits ...View the full answer

Applied Statistics And Probability For Engineers

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