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alegal psychologists conducted a study to evaluate the effectiveness of three patinol treatment proprond ants to receive grams. The researchary ers randomly assigned on patoured the offective of these treatments. Sixty days later, the poach of 15 led need to use as a One of their measures archers need) to 10 (high need). so this data to answer questions 25 through 36. rom this hypothetical study scale of 1 (low study are shown below. Need to Use Alcohol Treatment A Treatment B Treatment C 12 4 n = N = EX, EX,- EX - T= -ix3 7 2 = X , = EX 2 = Analysis of Variance Source Table Source Sums of Mean of Variation Squares Square Between Within Total 25. Compute the sum of squares total and enter it in the source table. 26. Compute the sum of squares within groups and enter it in the source table. they # 24 27. Compute the sum of squares between groups and enter it in the source table. 28. Compute the degrees of freedom for the total and enter it in the source table. 29. Compute the degrees of freedom within groups and enter it in the source table. DO # 30 then # 29 30. Compute the degrees of freedom between groups and enter it in the source table . 31. Compute the mean square within groups and enter it in the source table. 32. Compute the mean square between groups and enter it in the source table. 33. Compute the F ratio and enter it in the source table. 34. is the F ratio statistically significant? Indicate your answer in the source table under the p column df = ( " ) Critical value = Significant? Yes No 35. If F is statistically significant, compute HSD and determine which conditions are statistically different from each other. 36, Review the significance of F ratio and the HSD you just completed and interpret the results. In other words, explain the conclusions you can make about the different levels of the independent variable in this experiment. 74