In 2006, Visa wanted to move away from its long-running television advertising theme of “Visa, it’s everywhere you want to be.” During the winter Olympians in commericals with a broader message, including secruity, check cards, and payment technologies such as contactless processing. One of the first commercials featured snowboarder Lindsey Jacobellis being caoched to calm down before a big rce by imagining that her Visa Check Card got stolen. A key metric for the success of television advertisements is the proportion of viewers who “like the ads a lot,” Harriss Ad Research Service conducted a study of 903 adults who viewed the new Visa advertisement and reported that 54 indicated that they “like the ad a lot”. According to Harris, the proportion of a typical television advertisement receiving the “like the ad a lot” score is 0.21.a.Use the six-step critical value approach to hypothesis testing and a 0.05 level of significiance to try to prove that the new Visa ad is less successful than a typical television advertisement.b. use the five-step p-value approach to hypothesis testing and a 0.05 level of significance to try to prove that the new Visa as is less successful than a typical television advertisement.c. Compare the results of (a) and (b).”

In 2006, Visa wanted to move away from its long¬≠running television advertising theme of "Visa, it’s everywhere you want to be." During the winter Olympians in commericals with a broader…