# A quality control manager at a manufacturing facility has taken four samples with four observations each of the diameter of

## Question:

A quality control manager at a manufacturing facility has taken four samples with four observations each of the diameter of a part.

(a) Compute the mean of each sample.

(b) Compute an estimate of the mean and standard deviation of the sampling distribution.

(c) Develop control limits for 3 standard deviations of the productdiameter.

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**6**Section: Problems

Problem: 1

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