c.The rankings of college undergraduate academic programs.

4.How do the sample mean and the population mean differ? What is the symbol for each type of mean?

5.An expert reviews a sample of 10 scientific articles (n = 10) and records the following numbers oferror in each article: 0, 4, 2, 8, 2, 3, 1, 0, 5, and 7. Compute the SS, the variance, and the standard deviation for this sample using the definitional and computational formulas. You may use Microsoft® Excel® data anlysis to compute these statistics. You may copy your output from Microsoft® Excel® into this worksheet.

6.A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four CEOs of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The figures for the CEOs were 32, 60, 48, 36 square feet. a.Figure the means and standard deviations for the each group: governors and CEOs.

b.Explain, to a person who has never had a course in statistics, what you have done.