Variables Coefficient value Standard error F-value P-value Remarks b0 b1 b2 b3 b11 b22 b33 b12 b13 b23 74.83 1.45 0.38 0.55 -4.78 -3.53 -1.03 0.27 1.02 0.37 0.091 0.072 0.072 0.072 0.099 0.099 0.099 0.100 0.100 0.100 515.92 408.31 28.74 57.85 2334.78 1272.18 107.94 7.20 100.85 13.45 <0.0001 <0.0001   0.0011   0.0001 <0.0001 <0.0001 <0.0001   0.0314 <0.0001   0.0080 Significant Significant Significant Significant Significant Significant Significant Significant Significant Significant

Table 5: Coefficient of the model for kerosene oil biodegradation.