To construct: The R chart for energy consumption. To check: Whether the process is in statistical control or not and also identify which of the three out-of-control criteria lead to rejection of statistically stable variable if the process is not in statistical control.

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Chapter 14, Problem 2RE

To determine

To construct: The R chart for energy consumption.

To check: Whether the process is in statistical control or not and also identify which of the three out-of-control criteria lead to rejection of statistically stable variable if the process is not in statistical control.

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