A researcher conducted an experiment on the effects of a new drug on depression

question.docx

Home >Mathematics homework help >Numerical analysis homework help >A researcher conducted an experiment on the effects of a new drug on depression

A researcher conducted an experiment on the effects of a new drug on depression. The researcher had a control group that received nothing, a placebo group, and an experimental group that received the drug. A depression on a 50-point scale was used (50 indicates that a person is very high on the depression variable). The ANOVA summary appears next, Between groups 1,202.313, within groups 2,118.00, Total 3,320.313 Control mean 36.26, Placebo mean 33.33, drug mean 24.13

1) Complete the ANOVA summary table. 2) Is Fobt significant at alpha = .05; at alpha = .01? 3) Perform post hoc comparisons if necessary. 4) What conclusions can be drawn from the F-ratio and the post hoc comparisons? 5) What is the effect size, and what does this mean? 6) Graph the means