8.24 One-hour carbon monoxide concentrations in air samples from a large city average 12 ppm. The standard

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8.24 One-hour carbon monoxide concentrations in air samples from a large city average 12 ppm. The standard deviation of carbon monoxide concentrations measured from the last five air samples was 9 ppm. Find the probability that the average concentration in next five samples selected randomly will exceed 14 ppm.

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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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