Question: Calculate the missing values in the following table, assuming that you are comparing two independent, equalsize samples with a two-tailed t test. (Note: Small =

Calculate the missing values in the following table, assuming that you are comparing two independent, equalsize samples with a two-tailed t test. (Note: Small = .2, Medium = .5, Large = .8.)

n in each sample needed for power of .85 if: Proposed n in each sample Power Power a = .01 a = .05 a = .01 Effect size a

n in each sample needed for power of .85 if: Proposed n in each sample Power Power a = .01 a = .05 a = .01 Effect size a = .05 Small 30 100 Small Medium 30 Medium 100 Large Large 30 100

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