Model Summary

R

R Square

Adjusted R Square

Std. Error of the Estimate

0.671

0.450

0.392

520.029

The independent variable is Serial No

ANOVA

Sum of Squares

Df

Mean Square

F

Sig.

Regression

4206102.800

2

2103051.400

7.777

0.003

Residual

5138176.291

19

270430.331

Total

9344279.091

21

The independent variable is Serial No

Coefficients

Unstandardized Coefficients

Standardized Coefficients

t

Sig.

B

Std. Error

Beta

SerialNo

-252.253

73.171

-2.456

-3.447

0.003

SerialNo ** 2

8.929

3.089

2.059

2.890

0.009

(Constant)

1736.338

365.321

4.753

0.000