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(Solution Library) Can people really identify their favorite brand of cola? Volun teers tasted Coca-Cola Classic, Pepsi, Diet Coke, and Diet Pepsi, with

Question: Can people really identify their favorite brand of cola? Volun teers tasted Coca-Cola Classic, Pepsi, Diet Coke, and Diet Pepsi, with the results shown below. Research question: At α = . 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 × 2 table, try also a two-tailed two-sample z test for π 1 = π 2 (see Chapter 10) and verify that z 2 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

Col Total 19 27 46

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Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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