On the likelihood estimation of the parameters of Gompertz distribution based on complete and progressively Type-II censored samples

被引:24
|
作者
Ghitany, M. E. [1 ]
Alqallaf, F. [1 ]
Balakrishnan, N. [2 ]
机构
[1] Kuwait Univ, Fac Sci, Dept Stat & Operat Res, Safat 13060, Kuwait
[2] McMaster Univ, Dept Math & Stat, Hamilton, ON L8S 4K1, Canada
关键词
Gompertz distribution; progressive Type-II censoring; maximum-likelihood estimates; ordinary Type-II right censoring; existence and uniqueness;
D O I
10.1080/00949655.2013.766738
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In this paper, by considering a progressively Type-II censored sample from the two-parameter Gompertz distribution, a necessary and sufficient condition is established for the existence and uniqueness of the maximum-likelihood estimates of the shape and scale parameters. The results for the special cases of complete and ordinary Type-II right censored samples are then deduced. Several numerical examples from the literature are presented for the purpose of illustrating the established results.
引用
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页码:1803 / 1812
页数:10
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