Post Hoc Comparisons using Confidence Intervals Groups Mx Primary school 3 15.67 6.33 Junior high school 4 11.75 6.92 High school 4 17.25 4.92 (a.) Calculate 95% Cl for each group listed above. Interpret each Cl in a sentence immediately next to or below your calculation. (b.) After you've calculated all three, explain in 3 sentences, total, which groups you can conclude have statistically significant differences in population means and how you reached that conclusion. Compare primary to junior high; primary to high school; and junior high school to high school. CI Formula 95% CI = M +t (SM)

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