One-way ANOVA

Total Sums of squares

The total sums of squares in an ANOVA is the squared distance from the grand mean.

Group 1Group 2Group 3051015

Partitioning the total sums of squares

Total sums of squares = -5.52 + -4.52 + -3.52 + -2.52 + -1.52 + -0.52 + 0.52 + 1.52 + 2.52 + 3.52 + 4.52 + 5.52 = 143