When attempting to reject the null hypothesis in an ANOVA, the most important thing is to Group of answer choices maximize Between Groups variance. maximize Within Groups variance minimize Subjects variance maximize all sources of variance

ANOVA Happiness P| sumo squares Between Groups 2 4 367 5.640 O17 Within Groups 12 .833 Total 14 Multiple Comparisons Dependent Variable: Happiness Tukey HSD (1) Treatment (J) Treatment Mean Difference (I-J) | Std. Error Sig. 95% Confidence Interval Lower Bound | Upper Bound Cognitive Therapy Drug Therapy -.20000 Placebo 1.60000" Drug Therapy Cognitive Therapy .20000 Placebo 1.80000" Cognitive Therapy -1.60000 Drug Therapy -1.80000 * The mean difference is significant at the 0.05 level