Question: Use the data to create an x chart to test whether the process mean is under control. 2.5, 2.66, 2.8, 2.3, 2.5, 2.33, 2.41, 2.88,

Use the data to create an x̄ chart to test whether the process mean is under control.

2.5, 2.66, 2.8, 2.3, 2.5, 2.33, 2.41, 2.88, 2.54, 2.11, 2.26, 2.3, 2.41, 2.44, 2.17,

2.52, 2.55, 2.38, 2.89, 2.9, 2.11, 2.12, 2.13, 2.16

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