Source

Degrees of freedom (DOF)

Sum of squares

Mean square

% contribution

Particle size of rice husk (A)

2

0.574

0.287

1.126

Volume fraction of rice husk (B)

2

40.57

20.285

79.588

Polymer resin (C)

2

0.162

0.081

0.318

Error

2

9.169

4.5845

18.968

Total

8

50.975

6.372

100