Table 4.

Analysis of variance (ANOVA) for predictive equation for fucoidanase production by Streptomyces sp.

Source	Sum of Squares	DF	Mean Square	F-Value	p-Value > F
Model	226.45	9	25.16	1439.22	<0.0001 **
X1	12.83	1	12.83	733.73	<0.0001 **
X2	42.23	1	42.23	2415.50	<0.0001 **
X6	24.61	1	24.61	1407.44	<0.0001 **
X1X2	0.18	1	0.18	10.09	<0.0156 *
X1X6	1.31	1	1.31	74.99	<0.0001 **
X2X6	2.92	1	2.92	167.26	<0.0001 **
X21	38.37	1	38.37	2194.81	<0.0001 **
X22	90.90	1	90.90	5199.32	<0.0001 **
X26	11.69	1	11.69	668.69	<0.0001 **
Residual	0.12	7	0.017
Lack-of-fit	0.055	3	0.018	1.10	0.4456 NS
Pure error	0.067	4	0.017
Cor total	226.57	16

R²= 0.9995; CV = 1.11; R²_Adj = 0.9988; R²_Pre = 0.9956; DF—degree of freedom; F—Fischer’s test; P—Probability value; * <0.05; ** <0.01; NS = non-significant.