Coefficients

Probability

F calculated

(Fcalc.)

Critical value of F (Fcritic.)

Multiple regression (R²)

$a_0$

4.3178 × 10⁻⁹

15.2869

0.0008

0.9404

$a_{\text{1}}$

0.0002

$a_{\text{2}}$

0.0038

$a_1^2$

0.0753

$a_2^2$

0.7773