Question: A process that is assumed to be in control with limits of 89 2 had sample averages for the x -bar chart of the following:
A process that is assumed to be in control with limits of 89 2 had sample averages for the x-bar chart of the following: 87.1, 87, 87.2, 89, 90, 90.5, 89.5, and 88. Is the process in control?
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