Question: Please give me the correct answer quickly! A process that is assumed to be in control with limits of 89 + 4 had sample averages

Please give me the correct answer quickly!

A process that is assumed to be in control with limits of 89 + 4 had sample averages for the x-bar chart of the following: 871, 87, 87.2, 89, 90, 88.5, 89.5, and 88. Which of the following statement below are correct? Select one: a. None is correct b. Process mean is NOT out-of-control O c Not enough information to determine d. Process mean is out-of-control

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