(Solution Library) Can people really identify their favorite brand of cola? Volunteers tasted Coca-Cola classic, Pepsi, Diet Coke, and Diet Pepsi, with the
Question: 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 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 2x2 table, try also a two tailed two-sample z test for π1 =π2 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
Col Total 19 27 46
Deliverable: Word Document 
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ANOVA Tutorial - MathCracker.com