Model

F-Stat.

P-value

Linear

-20570 (2419.3)

1020.89 (29.4 )

-

-

1210

0.0000

Quadratic

-15950 (3637)

828.20 (117.4)

1.347 (0.795)

-

614.3

0.0000

Cubic 1

3287.5 (4283.3)

-758.03 (258.5)

28.98 (4.19)

-0.1288 (0.019)

553.1

0.0000

Cubic 2

-

-585.03 (126.3)

26.55 (2.75)

-0.1189 (0.014)

1400

0.0000