(Solution Library) Use a two-tailed test at the .05 level of significance. b. Calculate Cohen’s d to evaluate the size of the effect. c. Calculate the percentage
Question: Use a two-tailed test at the .05 level of significance.
b. Calculate Cohen’s d to evaluate the size of the effect.
c. Calculate the percentage of variance explained by the treatment, r 2 , another index to measure effect size.
Deliverable: Word Document 
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