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$2.00 15.28 Can people really identify their favorite brand
- From Mathematics: Statistics
- Closed, but you can still post tutorials
- Due on Nov. 03, 2008
- Asked on Nov 03, 2008 at 1:18:50PM
Q:15.28 Can people really identify their favorite brand of cola? Volunteers tasted Coca-Cola Classic, Pepsi, Diet Coke, and Diet Pepsi, with the results shown below. Research question: At a = .05, is the correctness of the prediction different for the two types of cola drinkers? Could you identify your favorite brand in this kind of test? Since it is a 2 x 2 table try also a two-tailed two-sample z test for n1 = n2 and verify that z is the same as your chi-square statistic. Which test do you prefer? Why? (Data are from Consumer Reports 56, no8 [August 1991], p. 519.)
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Data Set.doc (28K)
