For each of the following confidence levels look up the crit

For each of the following confidence levels, look up the critical z values for a two-tailed test. 80% 88% 95% Remembering that a meta-analysis calculates one mean effect size using the effect sizes of several studies, assume you are conducting a meta-analysis over a set of five studies. The effect sizes for each study are: d = .76, d = .05, d = .41, d = .63, d = .20 Calculate the mean effect size of these studies. Use Cohen\'s conventions to describe the mean effective size you calculated in part (a).

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