Assume that the control limits of an $\bar { x }$ chart are defined as 2 standard errors above and below the centerline.Calculate the probability that a sample mean falls outside the control limits when the process is in fact under control.

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The Answer of Assume that the control limits of an $\bar { x }$ chart are defined as 2 standard errors above and below the centerline.Calculate the probability that a sample mean falls outside the control limits when the process is in fact under control.

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Assume That the Control Limits of An $\bar { x }$