. 2012 Jul 26;3(2):127–136. doi: 10.1007/s13205-012-0077-1

Table 5.

Analysis of variance (ANOVA) for the fitted quadratic model of xylanase activity as a function of independent variables

Source	SS	DF	MS	F Value	p > F
Model	5551.51	9	616.83	161.80	<0.0001^a
A	359.66	1	359.66	94.34	<0.0001^a
B	61.72	1	61.72	16.19	0.0050^b
C	400.16	1	400.16	104.96	<0.0001^a
A ²	1,608.12	1	1,608.12	421.82	<0.0001^a
B ²	896.04	1	896.04	235.04	<0.0001^a
C ²	1,498.95	1	1,498.95	393.18	<0.0001^a
AB	38.07	1	38.07	9.99	0.0159^b
AC	0.023	1	0.023	5.902E−003	0.9409^c
BC	228.01	1	228.01	59.81	0.0001^a
Lack of fit	21.06	3	7.02	4.99	0.0772^c
Residual	26.69	7	3.81
Pure error	5.63	4	1.41

R²: 0.9952, adj R²: 0.9891, pre R²: 0.9380

C.V: 5.08, adequate precision: 34.90

SS sum of squares of model parameters, DF degree of freedom, MS mean square of model parameters

^aHighly significant, p ≤ 0.0001

^bSignificant, p ≤ 0.05

^cNon significant, p > 0.05