数学物理学报

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求参数函数置信限的一般性WCF方法及其应用

闫霞; 于丹; 李国英   

  1. 中央财经大学统计学院 北京 100081
  • 收稿日期:2005-01-08 修回日期:2006-12-21 出版日期:2007-04-25 发布日期:2007-04-25
  • 通讯作者: 闫霞
  • 基金资助:
    国家自然科学基金(19631040, 10371126)资助

Bound of Parametric Functions and Its Applications

Yan Xia; Yu Dan; Li Guoying   

  1. School of Statistics, Central University of Finance and Economics, Beijing 100081
  • Received:2005-01-08 Revised:2006-12-21 Online:2007-04-25 Published:2007-04-25
  • Contact: Yan Xia

摘要: 该文将求参数函数置信下限的WCF方法推广到参数的估计量之间具有相关性的一般情形; 利用推广了的公式, 给出了求单个威布尔型设备及含威布尔型设备的系统可靠度置信下限的方法, 并进行了模拟研究. 模拟结果表明, 该方法优于基于渐近正态性的近似方法, 尤其是在中小样本情况.

关键词: 置信下限, WCF方法, 威布尔分布

Abstract: This paper generalizes WCF method to the cases of parameters' estimators
being not independent. Based on this result, the lower bound of confidences of the reliability is obtained for the components with weibull distributed life, and the systems involve this kind of components. Simulation studies show that the inference results given by WCF method are better than those provided by the asymptotic method.

Key words: Confidence lower Bound, WCF method, Weibull Distribution

中图分类号: 

  • 62F25