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August 30, 2015

Homework Help: statistics

Posted by Jana on Monday, December 20, 2010 at 2:14pm.

The average age of a vehicle registered in the U.S. is 8 years, or 96 months. If a random sample of 36 vehicles is selected, find the probability that the mean of their age is between 98 and 100 months. Assume the standard deviation for the population is 15. (sample mean)

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