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. 2016 May;45(5):670–679.

Table 5:

ANOVA for oil degradation % in the L16 (45) orthogonal array experiment

Factor SS DOF F P-value
Salinity 883.076 3 3.28 0.03
pH 3399.379 3 12.62 0.00
Temperature 4669.017 3 17.33 0.00
FeSO4 7H2O 403.961 3 1.50 0.23
NH4Cl 212.793 3 0.79 0.51

SS=sum of squares of deviation, DOF = degree of freedom, F= a ratio of the mean of the squared deviation to the mean of squared error