10.96 Prospective employees of an engineering firm are told that engineers in the firm work at least...
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10.96 Prospective employees of an engineering firm are told that engineers in the firm work at least 45 hours per week, on the average.
A random sample of 40 engineers in the firm showed that, for a particular week, they averaged 44 hours of work with a standard deviation of 3 hours. Are the prospective employees being told the truth?
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Related Book For
Probability And Statistics For Engineers
ISBN: 9781133006909
5th Edition
Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr
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