Dispersive ordering of order statistics

被引:12
|
作者
Kochar, SC [1 ]
机构
[1] INDIAN STAT INST,NEW DELHI 110016,INDIA
关键词
hazard rate ordering; likelihood ratio ordering; k-out-of-n system; DFR distribution;
D O I
10.1016/0167-7152(95)00083-6
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
Let X(l),...,X(n), be a random sample of size n from a DFR distribution and let X((i:n)) denote its ith order statistic. It is shown that for i < j, X((i:n)) is less dispel sed than X((j:n)). Also, if X(i)'s are independent DFR random variables, but not necessarily identical, then X((l:n)) is less dispersed than X((f:n)), for j > 1.
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页码:271 / 274
页数:4
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