A manufacturer of dustless chalk instituted a quality controlprogram to monitor chalk
Chapter 16, Problem 16(choose chapter or problem)
A manufacturer of dustless chalk instituted a quality controlprogram to monitor chalk density. The sample standarddeviations of densities for 24 different subgroups, eachconsisting of n 5 8 chalk specimens, were as follows:.204.315.096.184.230.212.322.287.145.211.053.145.272.351.159.214.388.187.150.229.276.118.091.056Calculate limits for an S chart, construct the chart, andcheck for out-of-control points. If there is an out-ofcontrolpoint, delete it and repeat the process.
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