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Table 7 Significant analysis of regression equations

From: Investigation of Two-Dimensional Ultrasonic Surface Burnishing Process on 7075-T6 Aluminum

Model

Sum of squares

df

Mean square

F

Significant

R

Regression

3343505.62

4

835876.407

5231.812

.000b

Residual

479.30

3

159.768

  

Total

3343984.93

7

   

R=0.999, R2=0.997, adjusted R2=0.996

V

Regression

348.635

2

174.317

8.543

.036b

Residual

81.621

4

20.405

  

Total

430.255

6

   

R=0.900, R2=0.810, adjusted R2=0.715