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Question 20 QUESTION 20 A clinican has found a significant effect of a new drug and wants to know the effect size. If the population

Question 20

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QUESTION 20 "A clinican has found a significant effect of a new drug and wants to know the effect size. If the population mean =130 with a standard deviation = 20.5 and the clinical observed a sample of n = 64 had a mean = 126, then what would be the effect size in terms of Cohen's d?" O 2.56 O -1.56 O -0.20 O 0.20 QUESTION 21

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