Communications for Statistical Applications and Methods

  • 제9권1호
  • /
  • Pages.261-270
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  • 2002
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  • 2287-7843(pISSN)
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  • 2383-4757(eISSN)
한국통계학회 (The Korean Statistical Society)
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Confidence Intervals for the Median Survival Time under Proportional Censorship

  • Jeong, Seong-Hwa (Department of Statistics, Kyungpook National University) ;
  • Cho, Kil-Ho (Department of Statistics, Kyungpook National University)
  • 발행 : 2002.04.01
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초록

In this paper, we demonstrate the more accurate confidence intervals for median survival time under the simple proportional hazard model of Koziol and Green (1976) via the Edgeworth expansion for the distribution of the studentized ACL estimator derived in Jeong (2000). The numerical results show that the intervals, so-called test-based and reflect intervals (Slud et al., 1984), outperform normal approximating method in the small sample sizes and/or heavy censoring.

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참고문헌

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