Model Summary

R

R Square

Adjusted R Square

Std. Error of the Estimate

0.437

0.191

0.056

16.744

The independent variable is Serial No

ANOVA

Sum of Squares

df

Mean Square

F

Sig.

Regression

1190.891

3

396.964

1.416

0.271

Residual

5046.381

18

280.355

Total

6237.273

21

The independent variable is Serial No

Coefficients

Unstandardized Coefficients

Standardized Coefficients

t

Sig.

B

Std. Error

Beta

Serial No

-3.941

6.298

-1.485

-0.626

0.539

Serial No ** 2

0.164

0.629

1.465

0.261

0.797

Serial No ** 3

-0.002

0.018

-0.343

-0.099

0.922

(Constant)

33.014

17.106

1.930

0.070