Source of variation

Sum of squares

Degrees of freedom

Mean sum of squares

Calculated F ratio

F ratio (α = 0.05)

Remark

Problem size (A)

17,565,288.891

5

3,513,057.778

9.536

2.30

Significant

Algorithm (B)

6,160,662.029

5

1,232,132.406

2.93

2.30

Significant

Algorithm × problem size (AB)

10,515,346.157

25

420,613.846

1.141

1.61

Insignificant

Error

39,787,307.795

108

368,400.998

Total

74,028,604.872

143