Process Optimization and Wear Behavior of Red Mud Reinforced Aluminum Composites

Table 4

Result of ANOVA.

Symbol	Degree of freedom	Sum of squares	Mean sum of squares	-test	Contribution ()
A	2	0.037718	0.018859	5.12	13.6
B	2	0.095382	0.047691	12.95	34.5
C	2	0.096554	0.048277	13.11	34.9
D	2	0.046632	0.023317	6.33	16.87
Error	18	0.066303	0.003684		0.13
Total	26	0.342592			100