Sources

F

Prob > F*

X₁ [0.3 - 12]

312.8572

<0.0001

X₂ [270 - 272]

0.5665

0.4855

$X_1^2$

20.8996

0.0060

X₃

66.7251

0.0014

X₂ × X₃

0.0354

0.8590

X₁ × X₃

6.2464

0.0540