Modified maximum likelihood estimators using ranked set sampling

被引：19

作者：

Balci, Sibel ^{[1
]}

Akkaya, Aysen D. ^{[1
]}

Ulgen, B. Emre ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Stat, TR-06800 Ankara, Turkey

来源：

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS | 2012年 / 238卷

关键词：

Order statistics; Modified maximum likelihood; Ranked set sampling; ROBUST ESTIMATION; PARAMETERS;

D O I：

10.1016/j.cam.2012.08.030

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The closed-form maximum likelihood estimators (MLEs) of population mean and variance under ranked set sampling (RSS) do not exist since the likelihood equations involve nonlinear functions and have usually no explicit solutions. We derive modified maximum likelihood (MML) estimators for the population mean and variance under RSS and show that they are considerably more efficient than RSS estimators. Furthermore, we suggest two new estimators for the unknown parameters using two modified ranked set sampling methods and show that these methods make the variances of both MML and RSS estimators smaller. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：171 / 179

页数：9

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