An article in Quality Engineering [Is the Process Capable? Tables and Graphs in Assessing C pm (1992,
Question:
(a) Construct a control chart for individual measurements. Revise the control limits if necessary.
(b) Compare your chart in part (a) to one that uses only the last (least significant) digit of each diameter as the measurement. Explain your conclusion.
(c) Estimate μ and Ï from the moving range of the revised chart and use this value to estimate PCR and PCRk and interpret these ratios.
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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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