1. Forty samples of size 3 were taken from a Wilmer Machine Shop machining process over a...
Question:
a. Compute the mean and standard deviation of the data
b. Compute the mean and range of each sample and plot them on control charts. Does the process appear to be in statistical control? Why or why not?
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Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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