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Table 7 Pooled ANOVA-Surface roughness

From: Impact of nose radius and machining parameters on surface roughness, tool wear and tool life during turning of AA7075/SiC composites for green manufacturing

Source Sum of squares DF Mean squares F value Prob > F
Model 8.68 6 1.45 75.02* <  0.0001 significant
A 1.78 1 1.78 92.39* <  0.0001
B 1.34 1 1.34 69.66* <  0.0001
C 3.23 1 3.23 167.66* <  0.0001
D 0.71 1 0.71 36.60* <  0.0001
B2 1.23 1 1.23 63.65* <  0.0001
CD 0.39 1 0.39 20.17* 0.0002
Residual 0.44 23 0.019 2.27 0.1851 not significant
Lack of Fit 0.40 18 0.022
Pure Error 0.048 5 9.661E-003
Cor Total 9.13 29
  1. * Significant at 95% confidence interval