Suppose that you are interested in determining the average height of a person in a large city.   You begin by collecting the heights of a random sample of 256 people from the city. The average height of your sample is 64 inches, while the standard deviation of the heights in your sample is 4 inches. The standard error of your estimate of the average height in the city is  (0.0001, 64, 0.25, 0.0156)

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