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. 2023 Mar 27;13:4933. doi: 10.1038/s41598-023-32121-6

Table 2.

Estimation and significance of predictors in model for prediction of biogas production.

Variable Estimation Standard error p-value
Intercept  − 4822.08 463.74 ***
X1 848.56 61.00 ***
X2 3647.90 254.59 ***
X3 139.06 12.73 ***

X1, X2, X3 represented VS loading rate of swine manure, waste kitchen oil/swine manure ratio and temperature, respectively.

Significance: ***p < 0.001, **p < 0.01, *p < 0.05.