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(4) A clinical psychologist investigated whether daily meditation caused an improvement in academic achievement. Some college...

(4) A clinical psychologist investigated whether daily meditation caused an improvement in academic achievement. Some college students were matched on their GPAs; from each matched pair, the students were randomly assigned to the Meditation Group or the No Meditation Group. At the end of the semester, the students' academic achievement was measured. What statistical test would be appropriate to test the claim that meditation caused an improvement in academic performance? Why?

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