Table 3 ANOVA evaluation of the quadratic model for STS prediction.

From: Innovative approaches for predicting the elastic modulus and tensile strength of green concrete using soft computing methods

Source

Sum of squares

df

Mean square

F value

p-value Prob > F

 

Model

63.55

13

4.89

13.21

< 0.0001

significant

A-WFS/C

2.86

1

2.86

7.74

0.0059

 

B-W/C

1.07

1

1.07

2.88

0.0911

 

C-CA/C

19.32

1

19.32

52.20

< 0.0001

 

E-WFS/FA

4.08

1

4.08

11.02

0.0010

 

F-1000SP/C

14.32

1

14.32

38.69

< 0.0001

 

G-Age

4.25

1

4.25

11.48

0.0008

 

AG

3.35

1

3.35

9.06

0.0029

 

BF

1.68

1

1.68

4.54

0.0342

 

BG

4.38

1

4.38

11.83

0.0007

 

CF

9.59

1

9.59

25.92

< 0.0001

 

CG

4.38

1

4.38

11.84

0.0007

 

EG

3.67

1

3.67

9.92

0.0019

 

G2

3.87

1

3.87

10.47

0.0014

 

Residual

84.39

228

0.37

   

Lack of fit

84.14

221

0.38

10.66

0.0014

Significant

Pure error

0.25

7

0.036

   

Cor total

147.93

241

    
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