Question: A manager wishes to build a control chart for a answered process A toral of five (o5) samples are collected with five (o4) observations within

A manager wishes to build a control chart for a answered process A toral of five (o5) samples are collected with five (o4) observations within each sample. The samplemeans (X-bar) are, 14 09,13.94. 16 86, 18 77, and 16 64 respecively Also, the corresponding ranges are, 9 90, 7 73.7.89.7.56, and 3 49 respectively Thelower and upper control limits of the R-chart are respectively

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