Question

Suppose you are interested in estimating the average number of miles per gallon of gasoline your car can get. You calculate the miles per gal­lon for each of the next nine times you fill the tank. Suppose, in truth, the values for your car are bell-shaped, with a mean of 25 miles per gallon and a standard deviation of 1. Draw a picture of the possible sample means you are likely to get based on your sample of nine observations. Include the intervals into which 68%, 95%, and almost all of the potential sample means will fall.


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  • CreatedOctober 22, 2015
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