Table 18 ANOVA results for quadratic model (voids zone is response) of hot-rolled steel.

From: Mathematical modeling of wear behavior and Abbott Firestone zones of 0.16C steel using response surface methodology

Source

Sum of squares

df

Mean square

F-value

p-value

 

Model

10.26

7

1.47

170.10

 < 0.0001

Significant

A-Pressure

0.0000

1

0.0000

0.0000

1.0000

 

B-Velocity

0.5000

1

0.5000

58.00

0.0006

 

AB

2.25

1

2.25

261.00

 < 0.0001

 

A2

3.47

1

3.47

402.38

 < 0.0001

 

B2

1.06

1

1.06

123.43

0.0001

 

A2B

0.0833

1

0.0833

9.67

0.0266

 

AB2

0.0833

1

0.0833

9.67

0.0266

 

Residual

0.0431

5

0.0086

   

Lack of fit

0.0431

1

0.0431

   

Pure error

0.0000

4

0.0000

   

Cor total

10.31

12

    

Std. dev.

0.0928

R2

0.9958

Mean

0.7692

Adjusted R2

0.9900

C.V.%

12.07

Adeq precision

41.0702

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