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A manufacturer of dustless chalk instituted a quality control program to monitor chalk density. The sample standard deviations of densities for 24 different subgroups, each consisting of n = 8 chalk specimens, were as follows:

Calculate limits for an S chart, construct the chart, and check for out-of-control points. If there is an out-ofcontrol point, delete it and repeat the process.

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Category:- Statistics and Probability
Reference No.:- M91825068

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