Moments and efficiency of the median and trimmed mean for finite populations
作者:
Lewis H. Shoemaker,
James L. Rosenberger,
期刊:
Communications in Statistics - Simulation and Computation
(Taylor Available online 1983)
卷期:
Volume 12,
issue 4
页码: 411-422
ISSN:0361-0918
年代: 1983
DOI:10.1080/03610918308812328
出版商: Marcel Dekker, Inc.
关键词: Sampling;Simulation;exact moments;Simple random sampling
数据来源: Taylor
摘要:
Exact formulas for the expected value and variance of the median and trimmed mean are found as functions of the elements of a finite population under simple random sampling. A simulation study is performed to compare the performance of the median and trimmed mean versus the mean when sampling from various simulated finite populations. Finally, the asymptotic performance of these estimators, when sampling from infinite populations, is compared with the finite populations results.
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