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The number of alcoholic drinks per week is given for adult men and women who drink. The data are at this text’s website.

a. Compare the mean number of drinks for men and women.

b. Compare the standard deviation of the number of drinks of men and of women.

c. Remove the outliers of 70 and 48 drinks for the men, and compare the means again. What effect did removing the outliers have on the mean?

d. What effect do you think removing the two outliers would have on the standard deviation, and why?

2nd Edition

Authors: Robert Gould, Colleen Ryan

ISBN: 9780321978271