Question 1 (9 points) Cinquante-deux hommes gs de 11 30 ans ont t oprs au genou...
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Question 1 (9 points) Cinquante-deux hommes gs de 11 30 ans ont t oprs au genou au moyen d'une arthroscopie. Les patients ont t classs par type de blessure (Injury): genou tordu (Twist), coup direct (Direct) ou les deux (Both). Les rsultats de la chirurgie ont t classs comme excellent, bon (good) et passable ou mauvais (fair or poor). Excellent Result Good Fair-Poor Twist 21 11 4 Injury Direct 3 2 2 Both 7 1 1 Ajustement du modle log-linaire d'indpendance nous fournit les rsultats suivantes Coefficients: Estimate Std. Error z value Pr(>|z|) (Intercept) 3.0663 injuryDirect -1.6376 injuryBoth -1.3863 ResultGood -0.7949 -1.4881 0.2020 15.179 <2e-16 *** 0.4131 -3.964 7.36e-05 *** 0.3727 -3.720 0.000199 *** 0.3220 -2.469 0.013561 * 0.4185 -3.556 0.000377 *** ResultFair-Poor --- Signif. codes: 0 '**** 0.001 *** 0.01 * 0.05 0.1 1 degrees of freedom on 4 degrees of freedom Null deviance: 48.6756 on 8 Residual deviance: 3.1732 AIC: 41.607 (2) (a) Ce modle est-il adquat? justifier (4) (b) Complter Le modle log-linaire est ln(i) = + x + x), c , x = X = (3) (c) Dterminer les frquences espres suivantes 12 = 21 32 = Question 1 (9 points) Cinquante-deux hommes gs de 11 30 ans ont t oprs au genou au moyen d'une arthroscopie. Les patients ont t classs par type de blessure (Injury): genou tordu (Twist), coup direct (Direct) ou les deux (Both). Les rsultats de la chirurgie ont t classs comme excellent, bon (good) et passable ou mauvais (fair or poor). Excellent Result Good Fair-Poor Twist 21 11 4 Injury Direct 3 2 2 Both 7 1 1 Ajustement du modle log-linaire d'indpendance nous fournit les rsultats suivantes Coefficients: Estimate Std. Error z value Pr(>|z|) (Intercept) 3.0663 injuryDirect -1.6376 injuryBoth -1.3863 ResultGood -0.7949 -1.4881 0.2020 15.179 <2e-16 *** 0.4131 -3.964 7.36e-05 *** 0.3727 -3.720 0.000199 *** 0.3220 -2.469 0.013561 * 0.4185 -3.556 0.000377 *** ResultFair-Poor --- Signif. codes: 0 '**** 0.001 *** 0.01 * 0.05 0.1 1 degrees of freedom on 4 degrees of freedom Null deviance: 48.6756 on 8 Residual deviance: 3.1732 AIC: 41.607 (2) (a) Ce modle est-il adquat? justifier (4) (b) Complter Le modle log-linaire est ln(i) = + x + x), c , x = X = (3) (c) Dterminer les frquences espres suivantes 12 = 21 32 =
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