Question: Q2)- If the sample size collected from a process each day equals to five. After 30 samples have been collected, the estimated mean equal to
Q2)- If the sample size collected from a process each day equals to five. After 30 samples have been collected, the estimated mean equal to 34.2 and the estimated average sample standard deviation equals to 2.4. Suppose that both charts exhibit a process in control. (a)- Estimate the process standard deviation. (b)- Determine the control limits for X and S-chart. (c)- Determine type I error (d)- If the process mean shifts to 38. What happens to the percentage of nonconformities? (e)- If the process mean shifts to 38. What is the probability of detecting the shift on the next sample?
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