a. Use a computer to randomly select 100 samples of size 6 from a normal population with mean 20 and standard deviation

4.5.

b. Find mean x for each of the 100 samples.

c. Using the 100 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 in the SDSM.

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MINITAB (Release 14) a. Use the Normal RANDOM DATA commands on page 101, replacing generate with 100, store in with C1-C6, mean with 20, and stan- dard deviation with 4.5. b. Use the ROW STATISTICS commands on page 368, replacing input variables with C1-C6 and store result in with C7. c. Use the HISTOGRAM commands on page 61 for the data in C7. To adjust the histogram, se- lect Binning with midpoint and midpoint posi- tions 12.8:27.2/1.8. Use the MEAN and