10.5 The hardness of a certain rubber (in degrees Shore) is claimed to be 65 by the...

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10.5 The hardness of a certain rubber (in degrees Shore)

is claimed to be 65 by the manufacturer. One of their customers suspects that the rubber produced by this manufacturer is not as hard as claimed. What null and alternative hypotheses should the customer use to test the manufacturer’s claim?

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Probability And Statistics For Engineers

ISBN: 9781133006909

5th Edition

Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr

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