Excel users should note that empty cells (representing missing data) must be removed. For following variables conduct a test at the 5% significance level to determine whether Democrats and Republicans (PARTY: 1 = Democrat, 2 = Republicans) differ
Refer to Exercise. The respondents were also asked whether they thought the ad would be effective in selling the product. The responses (1 = Yes, 2 = No) were recorded. Can we infer that Special K buyers are more likely to respond yes than nonbuyers?
Exercise
Excel users should note that empty cells (representing missing data) must be removed. For following variables conduct a test at the 5% significance level to determine whether Democrats and Republicans (PARTY: 1 = Democrat, 2 = Republicans) differ.
Pass the Lotion, a long-running television commercial for Special K cereal, features a flabby sunbather who asks his wife to smear sun lotion on his back. A random sample of Special K customers and a random sample of people who do not buy Special K were asked to indicate whether they liked (code = 1) or disliked (code = 2) the ad. Can we infer that Special K buyers like the ad more than nonbuyers?
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