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April 21, 2014

Homework Help: Stats.

Posted by Christina on Monday, March 18, 2013 at 9:03am.

The average age of a vehicle registered in the United States is 8 years, or 96 months. Assume the standard deviation is 16 months. If a random sample of a group of 48 vehicles is selected find the probability that the mean of the groupís age is between 90 and 100 months.


The answer I got was .9536803695 is the correct?

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