Question: A process is in statistical control, has an overall mean of 4.25 and an average range of 0.45. Samples of 4 were used to construct

A process is in statistical control, has an overall mean of 4.25 and an average range of 0.45. Samples of 4 were used to construct the control charts. If the process is centered and customers specifications are 0.50, calculate the process capability index Cp. (2.5 Marks) Additional data (A2 for sample size 4 is .73)

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