An advertising firm wants to determine the relative effectiveness of two recently produced commercials for a car
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An advertising firm wants to determine the relative effectiveness of two recently produced commercials for a car dealership. An important attribute of such commercials is their believability. To judge this aspect of the commercials, 60 people were randomly selected. Each watched both commercials and then rated them on a 5-point scale (where 1 = Not believable, 2 = Somewhat believable, 3 = Moderately believable, 4 = Quite believable, and 5 = Very believable). Do these data provide sufficient evidence to indicate that there are differences in believability between the two commercials?
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H 0 The two population locations are the same H 1 The location of popul...View the full answer
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