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Author Question: A quality analyst wants to construct a sample mean chart for controlling a packaging process. He ... (Read 22 times)

jparksx

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A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that the process standard deviation is two ounces. Each day last week, he randomly selected four packages and weighed each. The data from that activity appears below.



(a) Calculate all sample means and the mean of all sample means.
(b) Calculate upper and lower control limits that allow for natural variations.
(c) Is this process in control?


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Marked as best answer by jparksx on Dec 3, 2019

Swizqar

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jparksx

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Reply 2 on: Dec 3, 2019
:D TYSM


ttt030911

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Reply 3 on: Yesterday
Excellent

 

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