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

SCENARIO 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.
-Referring to Scenario 9-7,the parameter the company officials is interested in is:

A) the mean number of viewers who "like the ads a lot".
B) the total number of viewers who "like the ads a lot".
C) the mean number of company officials who "like the ads a lot".
D) the proportion of viewers who "like the ads a lot".