Table 3.

Estimated effect, regression coefficient, and corresponding t- and P-values for BS production in central composite design experiments.

Name	Coefficient	F. Inflation	Stand. Dev.	t.exp.	Signification %
b0	53.493		16.994	3.15	*
b1	−22.431	1.00	13.431	−1.67	12.3%
b2	35.853	1.00	13.431	2.67	*
b3	26.302	1.00	13.431	1.96	7.6%
b4	−16.769	1.00	13.431	−1.25	23.9%
b5	70.524	1.00	13.431	5.25	***
b11	12.185	3.07	36.341	0.34	74.2%
b22	4.665	3.07	36.341	0.13	89.6%
b33	46.385	3.07	36.341	1.28	22.9%
b44	14.585	3.07	36.341	0.40	69.7%
b55	0.145	3.07	36.341	0.00	99.2%
b12	−54.250	1.00	14.246	−3.81	**
b13	−58.820	1.00	14.246	−4.13	**
b23	44.140	1.00	14.246	3.10	*
b14	37.120	1.00	14.246	2.61	*
b24	−59.020	1.00	14.246	−4.14	**
b34	−49.730	1.00	14.246	−3.49	**
b15	−45.760	1.00	14.246	−3.21	**
b25	30.780	1.00	14.246	2.16	5.4%
b35	23.670	1.00	14.246	1.66	12.5%
b45	−14.850	1.00	14.246	−1.04	32.3%

^***Significant at the level 99.9%;

^**Significant at the level 99%;

^*Significant at the level 95%; NS, Non-Significant.