Prediction Modeling and Sensitivity Analysis of Robot Bone Milling Temperature Operated by a Doctor

Table 9

Analysis of variance for quadratic regression equation T₄.

Factors	Deviation sum of squares	Degrees of freedom	Mean square error	F	(Prob > F)
Model	796.83	9	88.54	3370.22	0.0341	Significant
Rotation speed A	643.20	1	643.20	24483.93	0.0086	Significant
Feed speed B	88.80	1	88.80	3380.38	0.0243	Significant
Milling depth C	37.64	1	37.64	1432.64	0.0101	Significant
AB	0.011	1	0.011	0.43	0.5276
AC	0.031	1	0.031	1.19	0.3010
BC	0.031	1	0.031	1.19	0.3010
A^2	26.82	1	26.82	1020.78	0.0015
B^2	4.49	1	4.49	170.78	0.0002
C^2	2.12	1	2.12	80.56	0.6750
Residual	0.26	10	0.026
Misfit term	0.094	5	0.019	0.56	0.7296	Not significant
Pure error	0.17	5	0.034