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14. A researcher is interested in the effects of TV watching on people's eating habits. She designs a study where half the participants watch 2
14. A researcher is interested in the effects of TV watching on people's eating habits. She designs a study where half the participants watch 2 hours of TV per day and half the participants watch 4 hours per day. If she knows from previous research that the effect size is .54, how many participants in each group would she need to attain a power of .80, if alpha = .05, two-tailed? (3 pts)
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