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Mathematics, 23.04.2021 22:50 ochoanene822

An operation manager at a pump manufacture wants to test their pump outputs. The design engineer claims they have a mean output of 272 watts with a variance of 144. What is the probability that the mean pump output would be greater than 271.4 watts in a sample of 100 pumps if the claim is true?

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An operation manager at a pump manufacture wants to test their pump outputs. The design engineer cla...
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