An automobile shop manager timed eight employees and found that the average time it took them...

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An automobile shop manager timed eight employees and found that the average time it took them...

An automobile shop manager timed eight employees and found that the average time it took them to change a water pump was 22 minutes and the standard deviation was 5 minutes. Find the 99% confidence interval of the true mean.

math Statistics-And-Probability

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An automobile shop manager timed eight employees and found that the average time it took them...

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