摘要
本文在运用无偏转换思想找到区间数据均值估计的基础上,对所找到的估计量的方差进行了研究.针对区间截断情况1和区间截断情况2,找到了估计量方差有限的条件.当截断随机变量的分布在某种程度上比被截断随机变量的分布尾部更厚时,方差有限的估计量可以取到.
The estimator of expectation of interval censored data can be established by means of unbiased transformations.In this paper,we go further to study the variances of these estimators.In interval-censored Case 1 and interval-censored Case 2,when the tail of the density function of the censoring variable is thicker than that of the density function of the censored variable to some extent,the estimators with finite variance can be easily obtained.
出处
《应用概率统计》
CSCD
北大核心
2010年第4期419-426,共8页
Chinese Journal of Applied Probability and Statistics
基金
全国统计科研计划项目(2007LY043)资助
关键词
区间数据
无偏转换
均值估计
方差
Interval-censored data
unbiased transformation
the estimator of expectation
variance.
