Bioethanol Production from Stalk Residues of Chiquere and Gebabe Varieties of Sweet Sorghum

Table 6

Regression coefficients and the corresponding 95% CI high and low Chiquere and Gebabe variety ethanol yield of sweet sorghum.

Chiquere variety						Gebabe variety
Factor	Coefficient estimate	Degree of freedom	Standard error	95% CI low	95% CI high	Factor	Coefficient estimate	Degree of freedom	Standard error	95% CI low	95% CI high
Intercept	21.37	1	0.049	21.26	21.48	Intercept	20.33	1	0.031	20.26	20.40
A, yeast inoculum size	0.23	1	0.038	0.14	0.32	A, yeast inoculum size	0.19	1	0.025	0.13	0.25
B, pH	8.750E − 003	1	0.038	0.082	0.100	B, pH	−0.12	1	0.025	−0.17	−0.057
C, dilution	−0.65	1	0.038	−0.74	−0.56	C, dilution	−0.70	1	0.025	−0.76	−0.64
AB	0.16	1	0.054	0.027	0.028	AB	0.11	1	0.035	−0.19	−0.028
AC	0.44	1	0.054	0.32	0.57	AC	0.36	1	0.035	0.28	0.45
BC	−0.098	1	0.054	−0.23	0.031	BC	0.050	1	0.035	−0.032	0.13
A^2	−0.32	1	0.053	−0.45	−0.20	A^2	−0.040	1	0.034	−0.12	0.13
B^2	−0.55	1	0.053	−0.68	−0.43	B^2	0.075	1	0.034	−0.16	5.135E − 003
C^2	−0.49	1	0.053	0.62	−0.37	C^2	0.27	1	0.034	0.19	0.36

E = 10^X, where X is the power of decimal number.