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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Step by Step Answer:
Step 1 Find Xbar and R for each subgroup The table is on the right side Step 2 Calculate Xbarbar and Rbar 7XX X X k k RRRR R k k Step 3 Step 4 3526 D3 ...View the full answer
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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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