Can people really recognize their favorite brand of cola?, Ask an Expert

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Can people really recognize their favorite brand of cola? Volunteers tasted Coca-Cola Classic, Pepsi, Diet Coke, and Diet Pepsi, with results shown below. Research problem: At _ = .05, is the correctness of prediction different for two types of cola drinkers? Could you recognize your favorite brand in this type of test? Since it is a 2 _ 2 table, try also the two-tailed two-sample z test for ð1 = ð2 and verify that z2 is the same as your chi-square statistic. Which test do you prefer?Why?

Correct?	Regular Cola	Diet Cola	Row Total
Yes, got it right	7	7	14
No, got it wrong	12	20	32
Column Total	19	27	46

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M916858

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