Table 9.

Estimated Effects and Coefficients for the Yield.

Term	Effect	Coef	SE Coef	T	P
Constant		1.09433	0.05154	21.23	0.000
Pressure	1.07339	0.53670	0.05318	10.09	0.000
Temperature	0.42795	0.21397	0.05414	3.95	0.000
Flow rate	0.67875	0.33937	0.05446	6.23	0.000
Pressure×Temperature	0.15887	0.07943	0.05431	1.46	0.155
Pressure×Flow rate	0.04000	0.02000	0.05446	0.37	0.716
Temperature×Flow rate	0.21875	0.10938	0.05446	2.01	0.054
Pressure×Temperature×Flow rate	−0.00250	−0.00125	0.05446	−0.02	0.982