Some students (call them Group A) have studied the material on Chapter 7 for 20 hours. Other students (call them Group B) have not even scanned the chapter. Both groups take a quiz on Chapter 7. What do we expect to find when we compare average scores of Groups A and B on the Chapter 7 quiz?
A) We expect Group A to have a higher mean.
B) We expect Group B to have a higher mean.
C) We expect the group means to be about the same.
D) We can't develop any expectation about the outcome.
Correct Answer:
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