Table 3: Summary result for cubic regression model on students.

Model Summary

R

R Square

Adjusted R Square

Std. Error of the Estimate

0.419

0.176

0.038

1239.081

The independent variable is Serial No

ANOVA

 

Sum of Squares

Df

Mean Square

F

Sig.

Regression

5885061.409

3

1961687.136

1.278

0.312

Residual

27635771.546

18

1535320.641

 

 

Total

33520832.955

21

 

 

 

The independent variable is Serial No

Coefficients

 

Unstandardized Coefficients

Standardized Coefficients

T

Sig.

B

Std. Error

Beta

Serial No

-598.448

466.092

-3.076

-1.284

0.215

Serial No ** 2

73.613

46.542

8.961

1.582

0.131

Serial No ** 3

-2.322

1.332

-6.073

-1.743

0.098

(Constant)

2135.878

1265.893

 

1.687

0.109