Question

Refer to Exercise 4. Redraw the picture under the assumption that you will collect 100 measurements instead of only nine. Discuss how the picture differs from the one in Exercise 4.
In exercise 4,
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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