作者Cloie (交集與聯集的契機)
看板NCCU07_STGRA
標題[課業] 存活期末考第4題
時間Sun Jan 18 21:57:07 2009
各位有修存活的同學們
寄信給麗霞老師的信已回，所以存活第4題已改題目，請大家收信，注意紅色部分
4. Let T be the time in months to death due to AIDS since diagnosed
as being HIV positive. Let X be an indicator, where X=1 if using
針筒注射毒品before. The estimated coefficients under the exponential
regression model from SAS proc lifereg ( dist=
exponential) are:
Variable Estimate Std Err
Intercept 3.0239 0.1543
X -0.8557 0.2239
And Cov(beta0_hat,gamma_hat)=
-0.01040
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◆ From: 140.119.150.101
※ 編輯: Cloie 來自: 140.119.150.101 (01/18 22:01)
1F：推 bbbbfrog:歐歐歐的動作好快 01/19 08:17