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Solve Integrated Conceptual Statistics Problems
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CLEP
CLEPCM.200 Solve Integrated Conceptual Statistics Problems
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A volunteer study at two centers finds Program A users averaged 4 points higher than Program B users, but students chose their program and score distributions overlap. Which conclusion is best?
A
Program A has been proven to cause a 4-point increase for every adult learner.
B
A scored higher in the volunteer sample; causation and generalization are limited.
C
The overlap means the two program averages must be identical.
D
The volunteer design guarantees the sample represents all adult learners.
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