Bioinsecticide Production from Cigarette Wastes

Table 5

ANOVA fit for yield of crude extracts.

Source	Sum of squares	Df	Mean square	F-value	value	Remark
Model	17.94	9	1.99	1614.91	<0.0001	Significant
A: temperature	13.17	1	13.17	10669.01	<0.0001
B: time of extraction	0.6712	1	0.6712	543.80	<0.0001
C: NaOH concentration	0.1378	1	0.1378	111.67	<0.0001
AB	0.7110	1	0.7110	576.10	<0.0001
AC	0.0092	1	0.0092	7.44	0.0213
BC	1.90	1	1.90	1536.51	<0.0001
A^2	0.1780	1	0.1780	144.21	<0.0001
B^2	0.0257	1	0.0257	20.85	0.0010
C^2	1.11	1	1.11	901.70	<0.0001
Residual	0.0123	10	0.0012
Lack of fit	0.0012	5	0.0002	0.1051	0.9864	Not significant
Pure error	0.0112	5	0.0022
Cor total	17.95	19