Listed below are the top 10 salaries (in millions of dollars) of television personalities in a recent year (listed in order for Letterman, Cowell, Sheindlin, Leno, Couric, Lauer, Sawyer, Viera, Sutherland, and Sheen, based on data from OK! magazine).

a. Use the sample data to construct the 95% confidence interval for the population mean.

b. Do the sample data represent a simple random sample of TV salaries?

c. What is the assumed population? Is the sample representative of the population?

d. Does the confidence interval make sense?

38 36 35 27 15 13 12 10 9.6 8.4