A Use a computer to draw 500 random samples each
a. Use a computer to draw 500 random samples, each of size 20, from the normal probability distribution with mean 80 and standard deviation 15.
b. Find the mean for each sample.
c. Construct a frequency histogram of the 500 sample means.
d. Describe the sampling distribution shown in the histogram in part c, including the mean and standard deviation.
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