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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Related Book For
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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