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Table 3 ANOVA for the model developed to relate ethanol yield to the operational parameters in the pretreatment step

From: Introducing low-quality feedstocks in bioethanol production: efficient conversion of the lignocellulose fraction of animal bedding through steam pretreatment

Source Degrees of freedom Sum of squares Mean square
Total 18 48,853.0 2714.1
Mean 1 47,535.0 47,535.0
Corrected 17 1318.6 77.6
Factor effects 10 999.1 99.9
Residuals 8 319.5 39.9
Lack of fit 4 183.5 45.9
Purely experimental uncertainty 3 136.0 45.3