Number of treatment or groups c=4 Number of values in each group Total number of observations n = Among Groups Degrees of Freedom = c- 1 W/In Groups Degrees of Freedom = n - c 8 32 3 28 MSA SSA/C-1 SSA/3 SSA 80 80 80 240 SSW MSW = SSW/n-c 560 20 Total Sum of Squares is SST = SSA + SSW 800 Variance Ratio F = MSA/MSW 4 ANOVA TABLE SOURCE AMONG GROUPS W/IN GROUPS TOTAL D. FREEDOM c-1=3 n - c = 28 n -1 = 31 SUM OF SQUARES MEAN SQUARE VARIANCE (F) SSA = 240 MSA = 80 F=4 SSW = 560 MSW = 20 SST = 800