From the P values it was found that, the variables, C, D, A2, C2, D2 were significant model terms for decolorization and C, D, AD, BC A2, D2 were significant model terms for COD reduction.
It shows that factors B, C and C 2 are significant model terms for gross calorific value.
The main factors, solvent amount and oil:adsorbent ratio were the significant model terms for carotene and oil recoveries whereas oil:adsorbent ratio was the significant model term for carotene concentration.
Significant model terms for soil release rating were X1, X2, X3, (X2 2, and (X3)2 and for K/S were X1, X2, X3, X4, (X1 2 and (X2 2.
In this study, A, B, C, A2, B2, C2, AB, AC, and BC are significant model terms for TPH and Cr (VI), respectively.
Table 3 shows that the significant model terms for ash content are A, C, AB, AC, A 2 and B 2. The model was reduced by removing the other terms (BC and C 2 ) which are not significant.
It is also clear that the overall fits of the three models is significant because the Prob > F values of the model terms for the three responses are less than 0.05.
The means and generalized additive model terms for each country showing change in valence over time can be seen in Figure 2 (Figure S1 and Figure S2 in Supporting Information present the additional clips).
Estimating model terms for the Euler Lotka equation required several steps.
When the model terms for Y2 (disintegration time of wafers) were fitted in the polynomial quadric model, they were found to be significant with an F value 58.84 (P = 0.0034).
