[課業] 存活期末考第4題

[Cloie (交集與聯集的契機)]

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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開瓊筵以坐花，飛羽觴而醉月。

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◆ From: 140.119.150.101
※ 編輯: Cloie           來自: 140.119.150.101      (01/18 22:01)
推 bbbbfrog:歐歐歐的動作好快