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Table 8 Significance analysis of surface roughness regression model

From: Research on Surface Roughness of Supersonic Vibration Auxiliary Side Milling for Titanium Alloy

Source of variance Sum of square Degree of freedom Mean square F value P-value
A 0.17 1 0.17 41.84 0.0009
B 0.84 1 0.84 208.97 ≤ 0.0001
C 0.059 1 0.059 14.86 0.0130
AB 0.028 1 0.028 7.01 0.0331
AC 0.017 1 0.017 4.12 0.0818
BC 0.003042 1 3.042×10−3 0.76 0.4790
A2 0.057 1 0.057 14.30 0.0071
B2 1.980×10−3 1 1.980×10−3 0.49 0.353
C2 1.698×10−3 1 1.698×10−3 0.042 0.5100