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# The lifetime of a cooling fan, in hours, that is used in a computer system has the

ISBN: 9780073401331 38

## Solution for problem 11 Chapter 4.8

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition

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Problem 11

The lifetime of a cooling fan, in hours, that is used in a computer system has the Weibull distribution with = 1.5 and = 0.0001. a. What is the probability that a fan lasts more than 10,000 hours? b. What is the probability that a fan lasts less than 5000 hours? c. What is the probability that a fan lasts between 3000 and 9000 hours?

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Test Statistic  measures how far the sample data diverge from what we would expect should the null hypothesis be true  So, a test statistic with a high magnitude would show that the date is not consistent with H o P-values  the probability (when H0 I true) that the test statistic takes a value that is as extreme or more extreme than what is observed...

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