Xr10-26 It is known that the amount of time needed to change the oil on a car
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Xr10-26 It is known that the amount of time needed to change the oil on a car is normally distributed with a standard deviation of 5 minutes. The amount of time to complete a random sample of 10 oil changes was recorded and listed here. Compute the 99% confidence interval estimate of the mean of the population.
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Related Book For 
Statistics For Management And Economics
ISBN: 9781133420774
9th Edition
Authors: Gerald Keller, Kenneth C Louden
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