a. Use a computer to randomly select 200 samples of size 24 from a normal population with mean   20 and standard deviation

  4.5.

b. Find mean x for each of the 200 samples.

c. Using the 200 sample means, construct a histogram, find mean x , and find the standard deviation sx.

d. Compare the results of part c with the three statements made for the SDSM and CLT on page 370.

e. Compare these results with the results obtained in Exercise 7.27. Specifically, what effect did the increase in sample size from 6 to 24 have? What effect did the increase from 100 samples to 200 samples have?