Posted by **Barbara Pratt** on Monday, January 17, 2011 at 6:15pm.

Using a t test for dependent means based on .05 significance level, what is the power of each studies.

Study Effect size N Tails

(a) Small 20 one

(b) Medium 20 one

(c) medium 30 one

(d) medium 30 two

(e) large 30 two

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