[See Solution] 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 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
Deliverable: Word Document 
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Regression Coefficients from Correlation - MathCracker.com