Table 4.

Better estimates of the coefficients of each term in the model and the corresponding statistics.

Coefficient	Estimated Coefficient Values
	Genapol X-080	Tergitol 15-S-7
${\mathsf{\beta }}_0$	−6605.12	−7396.17
${\mathsf{\beta }}_{\mathrm{A}}$	645.722	504.556
${\mathsf{\beta }}_{\mathrm{B}}$	211.279	259.502
${\mathsf{\beta }}_{\mathrm{C}}$	895.638	903.736
${\mathsf{\beta }}_{\mathrm{A},\mathrm{B}}$	−34.7289	−40.1244
${\mathsf{\beta }}_{\mathrm{A},\mathrm{C}}$	174.833	220.611
${\mathsf{\beta }}_{\mathrm{B},\mathrm{B}}$	−1.61313	−2.432
${\mathsf{\beta }}_{\mathrm{B},\mathrm{C}}$	−10.99	−7.79
${\mathsf{\beta }}_{\mathrm{C},\mathrm{C}}$	−33.3045	−44.6458
Statistics
Lack of fit 1	0.351	0.082
R2	0.943	0.953
R2adj	0.930	0.943
RSD	167	150

¹ Lack of fit test expressed in its test value (P).