About how many participants are needed for 80% power in each of the following planned studies that

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About how many participants are needed for 80% power in each of the following planned studies that will use a correlation coefficient and the .05 significance level?

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Statistics For Psychology

ISBN: 9780205258154

6th Edition

Authors: Arthur Aron, Elaine N. Aron, Elliot J. Coups

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Question Posted: Feb 17, 2016 04:57 AM

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What is the power of each of the following studies using a correlation coefficient and the .05 significance level? Effect Size (r) N Tails .10 50 2 b) 30 100 1 (c) 50 30 2 (d) 30 40 1 .10 100 2
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About how many participants are needed for 80% power in each of the following planned studies that

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Tails Effect Size (r) .50 .30 10

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