Table 5 Fitted Failure Model,,,, Variable,Parameter,Estimate,T,P X1,?1,–1.54,–6.52,0.000 X2,?2,6.39,5.03,0.000 X4,?4,0.12,6.02,0.000 X5,?5,0.02,10.86,0.000 ANOVA,,,, Source,SS,df,F,P Regression,615.79,4,96.22,0.000 Error,347.21,217,, Total,963.00,221,,