An X chart uses samples of size 1. The center line is at 100, and the upper
Question:
An X chart uses samples of size 1. The center line is at 100, and the upper and lower 3-sigma limits are at 112 and 88, respectively.
(a) What is the process σ?
(b) Suppose that the process mean shifts to 96. Find the probability that this shift is detected on the next sample.
(c) Find the ARL to detect the shift in part (b).
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a 112 1003 4 b PZ 4 PZ 2 09772 Th...View the full answer
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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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