Table 5. Parameter estimates for the ordinary linear model. R² = 0.685.

Parameter	Estimate	Std. Err.	t-value	Pr > |t|
b0	0.3089	0.0079	39.29	< .0001
b1	–0.0062	0.0003	–20.42	< .0001
b2	0.0011	0.0002	4.98	< .0001