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An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent are normally distributed with mean = 117 cm and standard deviation = 5.2 cm. a. Find the probability that one selected subcomponent is

An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent are normally distributed with mean = 117 cm and standard deviation = 5.2 cm.

a. Find the probability that one selected subcomponent is longer than 120 cm.

b. Find the probability that if four subcomponents are randomly selected, their mean length exceeds 120 cm.

c. Find the probability that if four subcomponents are randomly selected, all four have lengths that exceed 120 cm.


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a PX 120 PZ 058 1 PZ 58 …View the full answer


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Statistics For Management And Economics Abbreviated

Statistics For Management And Economics Abbreviated

ISBN: 9781285869643

10th Edition

Authors: Gerald Keller

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Posted Date: February 03, 2015 08:42:56
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