Table 12. ANOVA Result for SA.

factors	degree of freedom	sum of squares	variance	F-test	contribution (%)	rank
IP	2	2.220	1.110	0.639	6.263	3
IT	2	0.187	0.093	0.054	0.527	6
PL	2	3.387	1.693	0.975	9.554	2
MT	2	1.040	0.520	0.299	2.934	4
HP	2	0.260	0.130	0.075	0.733	5
IS	2	4.027	2.013	1.159	11.360	1
error	14	24.327	1.738		68.629
sum	26	35.447