[Solution] QUESTION: A researcher wishes to detect a mean difference of 0.75 for a variable that has a SD of 1.34. How large a sample is needed to detect
QUESTION: A researcher wishes to detect a mean difference of 0.75 for a variable that has a SD of 1.34. How large a sample is needed to detect this mean difference with 90% power at α = 0.05 (two-sided).
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