Table 4: ANOVA table for experimental corrosion rate (mm/yr).

Source Sum of Squares DF Contribution (%) Adj. SS Adj. MS F-value P-value
Model 1.03863 3 72.95 1.03863 0.34621 9.89 0.002
X 0.74133 1 52.07 0.75103 0.75103 21.45 0.001
Y 0.20904 1 14.68 0.20109 0.20109 5.74 0.035
Y2 0.08826 1 6.20 0.08826 0.08826 2.52 0.141
Error 0.38511 11 27.05 0.38511 0.03501 - -
Total 1.42373 14 100.00 - - - -

R2 = 72.95 %, Adjusted R2 = 65.57 % Where DF = Degree of freedom, Adj SS = Adjusted Sum of Squares, Adj MS = Adjusted Mean Squares