Question

University professors conducted a study of television commercials. The key research question was​ "Do television advertisers use religious symbolism to sell goods and​ services?" In a sample of 793793 TV commercials collected in​ 1998, only 1414 commercials used religious symbolism. Of the 1 comma 5031,503 TV commercials examined in the more recent​ study, 5050 commercials used religious symbolism. Conduct an analysis to determine if the percentage of TV commercials that use religious symbolism has changed since the 1998 study assuming a significance level of 0.010.01. If you detect a​ change, estimate the magnitude of the difference and attach a measure of reliability to the estimate.

Answer 1

Conclusion: There is no evidence to conclude that the percentage of TV commercials that use religious symbolism has changed since the 1998.