Question: What is the minimum sample size we must use if we want a probability equal to 0.9 to detect a mean change magnitude +1.5 o

What is the minimum sample size we must use if we want a probability equal to 0.9 to detect a mean change magnitude +1.5 o (on the first subsequent sample), through X-bar Shewhart control chart? n= 5 n=6 n= 8 O n=9 O n = 10 O

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