ANOVA Step by Step

" (Because they are essentially mean squared deviations) So we can compute: MSbetween = SSbetween = the variance between treatments. dfbetween. and. MSwithin = SSwithin = the variance within treatments. dfwithin. So for the Alcohol study, MSbetween = 20.133/2 = 10.067. MSwithin = 18.800/12 = 1.567. Note: In general we do not compute MStotal. ................
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