Chapter 5, Problem 5.16E

Refer to the three types of bias given in Section 5.1. Which type of bias do you think would be introduced in each of the following situations? Explain.

a. In a college town, college students are hired to conduct door-to-door interviews to determine whether city residents think there should be a law forbidding loud music at parties.

b. A magazine sends a survey to a random sample of its subscribers asking them whether they would like the frequency of publication reduced from biweekly to monthly or would prefer that it remain the same.

c. A random sample of registered voters is contacted by phone and asked whether or not they are going to vote in the upcoming presidential election.