SPACE SHUTTLE O-RING DATA -- LOGISTIC REGRESSION DALAL ET AL, 'RISK ANALYSIS OF THE SPACE SHUTTLE...' JASA VOL.84 NO.408 pp 945-957; DECEMBER 1989 The REG Procedure Model: MODEL1 Dependent Variable: fail Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 1 0.25756 0.25756 0.37 0.5683 Error 5 3.45672 0.69134 Corrected Total 6 3.71429 Root MSE 0.83147 R-Square 0.0693 Dependent Mean 1.42857 Adj R-Sq -0.1168 Coeff Var 58.20300 Parameter Estimates Parameter Standard Variable DF Estimate Error t Value Pr > |t| Intercept 1 3.04649 2.66929 1.14 0.3054 temp 1 -0.02539 0.04160 -0.61 0.5683 SPACE SHUTTLE O-RING DATA -- LOGISTIC REGRESSION DALAL ET AL, 'RISK ANALYSIS OF THE SPACE SHUTTLE...' JASA VOL.84 NO.408 pp 945-957; DECEMBER 1989 The GENMOD Procedure Model Information Data Set WORK.THREE Distribution Binomial Link Function Logit Dependent Variable fail1 Observations Used 24 Missing Values 76 Response Profile Ordered Total Value fail1 Frequency 1 1 7 2 0 17 PROC GENMOD is modeling the probability that fail1='1'. Criteria For Assessing Goodness Of Fit Criterion DF Value Value/DF Deviance 22 20.3714 0.9260 Scaled Deviance 22 20.3714 0.9260 Pearson Chi-Square 22 23.6199 1.0736 Scaled Pearson X2 22 23.6199 1.0736 Log Likelihood -10.1857 Algorithm converged. Analysis Of Parameter Estimates Standard Wald 95% Chi- Parameter DF Estimate Error Confidence Limits Square Pr > ChiSq Intercept 1 15.2968 7.3286 0.9329 29.6607 4.36 0.0369 temp 1 -0.2360 0.1074 -0.4465 -0.0256 4.83 0.0279 Scale 0 1.0000 0.0000 1.0000 1.0000 NOTE: The scale parameter was held fixed. Observation Statistics Observation temp Lower Upper 1 25 0.5670136 1 SPACE SHUTTLE O-RING DATA -- LOGISTIC REGRESSION DALAL ET AL, 'RISK ANALYSIS OF THE SPACE SHUTTLE...' JASA VOL.84 NO.408 pp 945-957; DECEMBER 1989 The GENMOD Procedure Observation Statistics Observation temp Lower Upper 2 26 0.5603457 1 3 27 0.5536378 1 4 28 0.5468906 1 5 29 0.540105 0.9999999 6 30 0.5332817 0.9999999 7 31 0.5264211 0.9999999 8 32 0.5195239 0.9999998 9 33 0.5125902 0.9999997 10 34 0.50562 0.9999995 11 35 0.4986134 0.9999992 12 36 0.4915699 0.9999988 13 37 0.4844887 0.9999981 14 38 0.4773689 0.9999971 15 39 0.470209 0.9999955 16 40 0.463007 0.9999929 17 41 0.4557604 0.999989 18 42 0.448466 0.9999829 19 43 0.4411199 0.9999733 20 44 0.433717 0.9999585 21 45 0.4262515 0.9999355 22 46 0.4187157 0.9998998 23 47 0.4111007 0.9998442 24 48 0.4033953 0.9997582 25 49 0.395586 0.9996247 26 50 0.3876563 0.9994182 27 51 0.3795858 0.9990987 28 52 0.3713493 0.9986056 29 53 0.362916 0.9978458 30 53 0.362916 0.9978458 31 54 0.3542469 0.9966778 32 55 0.3452936 0.9948885 33 56 0.3359948 0.9921589 34 57 0.3262724 0.9880188 35 57 0.3262724 0.9880188 36 58 0.3160265 0.9817884 37 58 0.3160265 0.9817884 38 59 0.3051282 0.9725133 39 60 0.2934107 0.9589095 40 61 0.2806584 0.9393632 41 62 0.2665956 0.912058 42 63 0.2508788 0.8753321 43 63 0.2508788 0.8753321 44 64 0.2331077 0.828328 45 65 0.212879 0.7718162 46 66 0.1899299 0.7087584 47 66 0.1899299 0.7087584 48 67 0.1644007 0.6439836 49 67 0.1644007 0.6439836 SPACE SHUTTLE O-RING DATA -- LOGISTIC REGRESSION DALAL ET AL, 'RISK ANALYSIS OF THE SPACE SHUTTLE...' JASA VOL.84 NO.408 pp 945-957; DECEMBER 1989 The GENMOD Procedure Observation Statistics Observation temp Lower Upper 50 67 0.1644007 0.6439836 51 67 0.1644007 0.6439836 52 68 0.1371396 0.5827485 53 68 0.1371396 0.5827485 54 69 0.1097753 0.5289201 55 69 0.1097753 0.5289201 56 70 0.0842971 0.484024 57 70 0.0842971 0.484024 58 70 0.0842971 0.484024 59 70 0.0842971 0.484024 60 70 0.0842971 0.484024 61 71 0.0623286 0.44761 62 72 0.0446423 0.4182531 63 72 0.0446423 0.4182531 64 73 0.0311768 0.3943687 65 73 0.0311768 0.3943687 66 74 0.0213547 0.3745984 67 75 0.0144148 0.3578982 68 75 0.0144148 0.3578982 69 75 0.0144148 0.3578982 70 76 0.0096243 0.3435028 71 76 0.0096243 0.3435028 72 76 0.0096243 0.3435028 73 77 0.0063732 0.3308602 74 78 0.0041941 0.3195722 75 78 0.0041941 0.3195722 76 79 0.002747 0.3093492 77 79 0.002747 0.3093492 78 80 0.0017926 0.299978 79 80 0.0017926 0.299978 80 81 0.0011664 0.2912996 81 81 0.0011664 0.2912996 82 82 0.0007572 0.2831937 83 83 0.0004907 0.2755678 84 84 0.0003175 0.2683504 85 85 0.0002051 0.2614848 86 86 0.0001324 0.2549261 87 87 0.0000854 0.2486381 88 88 0.000055 0.2425912 89 89 0.0000354 0.2367614 90 90 0.0000228 0.2311285 91 91 0.0000147 0.2256757 92 92 9.4378E-6 0.220389 93 93 6.0667E-6 0.2152564 94 94 3.8984E-6 0.2102676 95 95 2.5043E-6 0.2054136 96 96 1.6083E-6 0.2006869 97 97 1.0326E-6 0.1960808 SPACE SHUTTLE O-RING DATA -- LOGISTIC REGRESSION DALAL ET AL, 'RISK ANALYSIS OF THE SPACE SHUTTLE...' JASA VOL.84 NO.408 pp 945-957; DECEMBER 1989 The GENMOD Procedure Observation Statistics Observation temp Lower Upper 98 98 6.6285E-7 0.1915892 99 99 4.2541E-7 0.1872071 100 100 2.7297E-7 0.1829297