Consider the data set of numbers of hours students spent per week searching the Internet, listed in this section on page 272. Discuss methods for selecting a random sample from this population. Work with a group of friends (or your whole class), and have each person select a random sample of n = 10 values from the data set and find the mean of his or her sample. Find the mean of the individual sample means and compare it to the population mean.

Repeat the process with samples of size n = 20. How does the mean of the sample means compare to the population mean?