Graph the ranges of the samples in Prob. 6 on a control chart for ranges. Data from

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Graph the ranges of the samples in Prob. 6 on a control chart for ranges.

Data from Prob. 6

Graph the means of the following 10 samples (thickness of gaskets, coded values) on a control chart for means, assuming that the population is normal with mean 5 and standard deviation 1.16.

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