Sludge Bulking Prediction Using Principle Component Regression and Artificial Neural Network

Table 5

MLR result for prediction model.

Included independent variables	Regression coefficient (B)	Std. Error of B	Std. regression coefficient (β)	𝑡	Sig.
(Constant)	468.935	16.782		27.942	.000
PC1	.025	.008	.097	3.238	.001
PC2	−.007	.003	−.070	−2.392	.017
PC3	−15.898	.603	−.794	−26.381	.000