An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent
Question:
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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Related Book For 
Statistics For Management And Economics Abbreviated
ISBN: 9781285869643
10th Edition
Authors: Gerald Keller
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