One-way ANOVA

Source of variation

Sum of Squares (SS)

Degrees of freedom (df)

Mean Square

(MS)

F-statistic

Between Groups

SSb

(k − 1)

$\text{MSb}=\frac{\text{SSb}}{K-1}$

$\frac{\text{MSb}}{\text{MSw}}$

Within Groups

SSw

(N − k)

$\text{MSw}=\frac{\text{SSw}}{N-k}$

Total

SSt

(N − 1)