TABLE 9-7
A major home improvement store conducted its biggest brand recognition campaign in the company's history.A series of new television advertisements featuring well-known entertainers and sports figures were launched.A key metric for the success of television advertisements is the proportion of viewers who "like the ads a lot".A study of 1,189 adults who viewed the ads reported that 230 indicated that they "like the ads a lot." The percentage of a typical television advertisement receiving the "like the ads a lot" score is believed to be 22%.Company officials wanted to know if there is evidence that the series of television advertisements are less successful than the typical ad at a 0.01 level of significance.
-True or False: Referring to Table 9-7,the company officials can conclude that there is sufficient evidence to show that the series of television advertisements are less successful than the typical ad using a level of significance of 0.05.

Question

Quizplus · Accepted Answer

Based on the information given in the question, the p-value calculated for this hypothesis test is less than 0.05 but greater than 0.01. Therefore, at a level of significance of 0.05, the null hypothesis cannot be rejected. However, at a level of significance of 0.01, the null hypothesis can be rejected in favor of the alternative hypothesis, indicating that there is sufficient evidence to show that the series of television advertisements are less successful than the typical ad.

TABLE 9-7 A Major Home Improvement Store Conducted Its Biggest Brand Recognition