According to a recent marketing campaign, 90 drinkers of either Diet Coke or Diet Pepsi participated in a blind taste te

[answerhappygod]

According to a recent marketing campaign, 90 drinkersof either Diet Coke or Diet Pepsi participated in a blind tastetest to see which of the drinks was their favorite. In one Pepsitelevision commercial, an anouncer states that "in recent blindtaste tests, more than one half of the surveyed preferred DietPepsi over Diet Coke." Suppose that out ofthose 90, 52 preferred Diet Pepsi. Test thehypothesis, using 𝛼=0.01 that more than half of allparticipants will select Diet Pepsi in a blind taste test by givingthe following: (a) the test statistic=(b) the critical 𝑧 score=