Long description: table6
Alt text: A table detailing the components of a two-way Analysis of Variance (ANOVA) calculation.
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- The table displays calculations related to the Sum of Squares (SS), Degrees of Freedom, Mean Square (MS), and the F ratio for a two-way ANOVA.
- The components listed include 'Between samples (due to factor A),' 'Between samples (due to factor B),' 'Within samples (due to chance errors),' and 'Totals.'
- For the 'Between samples (due to factor A)' row, the Sum of Squares (SS) is shown as \(\sum_{i=1}^{a} (\hat{X}_i - \bar{X})^2\), with \(a-1\) degrees of freedom, and the Mean Square (MS) is calculated as \(SS_A / (a-1)\), resulting in an F ratio \(F = SS_A / MS_E\).
- For the 'Between samples (due to factor B)' row, the Sum of Squares (SS) is \(\sum_{j=1}^{b} (\hat{X}_j - \bar{X})^2\), with \(b-1\) degrees of freedom, and the Mean Square (MS) is calculated as \(SS_B / (b-1)\), resulting in an F ratio \(F = SS_B / MS_E\).
- For the 'Within samples (due to chance errors)' row, the Sum of Squares (SS) is \(\sum_{i=1}^{a} \sum_{j=1}^{b} (X_{ij} - \hat{X}_{ij})^2\), which has \((a-1)(b-1)\) degrees of freedom, and the Mean Square (MS) is calculated as \(SS_E / (a-1)(b-1)\).
- The 'Totals' row shows the total Sum of Squares (SS) as \(\sum_{i=1}^{a} \sum_{j=1}^{b} (X_{ij} - \bar{X})^2\), with \(ab-1\) degrees of freedom.