[Retracted] Surface Feature Prediction Modeling and Parameter Optimization for Turning TC17 Titanium Alloy

Table 5

Analysis of variance for Ra.

Source	DF	Adj SS	Adj MS	F-value	-value	C. (%)	Signif
Model	9	5.74	0.64	45.52	<0.0001	97.62	YES
A	1	0.018	0.018	1.26	0.288	0.31
B	1	5.39	5.39	384.57	<0.0001	91.67
C	1	0.14	0.14	9.77	0.0108	2.38
AB	1	0.014	0.014	0.97	0.3475	0.24
AC	1	0.056	0.056	4.01	0.0732	0.95
BC	1	0.033	0.033	2.32	0.1586	0.56
A^2	1	0.014	0.014	1.01	0.338	0.24
B^2	1	7.38E-03	7.38E-03	0.53	0.4845	0.13
C^2	1	3.73E-03	3.73E-03	0.27	0.6172	0.06
Error	10	0.14	0.014
Total	19	5.88