A firm is interested in testing the advertising effectiveness of a new television commercial. As part of the test, the commercial is shown on a 6:30 PM local news program in Bacolod City. Two days later, a market research firm conducts a telephone survey to obtain information on recall rates (percentage of viewers who recall seeing the commercial) and impressions of the commercial.

a. What is the population for this study? ___________________________________________________________ ___________________________________________________________

b. What is the sample for this study?____________________________________________________________________________________________________________________________________________________

c. Why would a sample be used in this situation? Explain.