Question: Consider the revised control chart in Exercise 15-8 with , UCL 7.443, LCL 5.125, and n 3. Suppose that the mean shifts

Consider the revised control chart in Exercise 15-8 with , UCL  7.443, LCL  5.125, and n  3.

Suppose that the mean shifts to 5.5.

(a) What is the probability that this shift will be detected on the next sample?

(b) What is the ARL after the shift?

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