The sample means were calculated for 40 samples of size n = 5 for a process that
Question:
The sample means were calculated for 40 samples of size n = 5 for a process that was judged to be in control. The means of the 40 values and the standard deviation of the combined 200 measurements were x̅ = 155.9 and s = 4.3, respectively.
a. Use the data to determine the upper and lower control limits for an x̅ chart.
b. Construct an x̅ chart for the process and explain how it can be used.
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Similar to Exercise 748 a The upper and lower control limits are b The control ...View the full answer
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Related Book For 
Introduction To Probability And Statistics
ISBN: 9780495389538
13th Edition
Authors: William Mendenhall, Robert J. Beaver, Barbara M. Beaver
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