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Question
A production process that is in control has a mean (
) of 80 and a standard deviation (
) of 10.a. Determine the upper and the lower control limits for sample sizes of 25.
b. Five samples had means of 81, 84, 75, 83, and 79. Construct an x-bar chart and explain whether or not the process is in control.
Answer
This answer is hidden. It contains 39 characters.
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