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The owner of Big Fish supermarket was reviewing some data from a research report on the type of advertisements in the local paper that are most effective. Three types of ads (big headline, straight forward and bold print) were randomly alternated over a period of weeks and the number of shoppers that reported that they read the ad was tallied. Do the data below support the hypothesis that there is no difference in the effectiveness of the ads, as measured by the mean number of shoppers who reported reading the ad? Use an alpha of .05.
Type of Advertisement
Big Headline
Straight Forward
Bold Print
23
19
28
42
31
33
36
18
46
48
24
29
26
34
25
Conduct all steps of the hypothesis test. Remember to include hypotheses, test statistic, decision, and conclusion.
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