Can people really identify their favorite brand of cola? Volunteers tasted Coca-Cola classic, Pepsi, Diet Coke and Diet Pepsi, with the results given below. At α = 0.05, is the correctness of the prediction different for the two types of cola drinkers?
Correct?
|
Regular Cola
|
Diet Cola
|
TOTAL
|
Yes
|
7
|
7
|
14
|
No
|
12
|
20
|
32
|
TOTAL
|
19
|
27
|
46
|