Explaining two-tailed two-sample and chi-square

Reference no: EM1312086

Q1) Can people actually recognize their favorite brand of cola? Volunteers tasted Classic, Pepsi, Diet Pepsi Diet Coke, and Coca-Cola, with results given below. Research question: At _ = .05, is correctness of prediction dissimilar for the 2 types of cola drinkers? Could you recognize your favourite brand in this type of test? As it is a 2 _ 2 table, try also two-tailed two-sample z test for ð1 = ð2 and verify that z2 is same as your chi-square statistic. Which test do you favour? Describe 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

Reference no: EM1312086

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