Bayes minimax competitors of preliminary test estimators in k sample problems
Bayes minimax competitors of preliminary test estimators in k sample problems
复制标题
k 样本问题中初步测试估计器的贝叶斯极小极大竞争对手
DOI:
10.1007/s42081-018-0002-x
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发表时间:
2018
影响因子:
1.3
通讯作者:
M. Ghosh
中科院分区:
文献类型:
--
作者:
R. Imai;T. Kubokawa;M. Ghosh
In this paper, we consider the estimation of a mean vector of a multivariate normal population where the mean vector is suspected to be nearly equal to mean vectors ofother populations. As an alternative to the preliminary test estimator based on the test statistic for testing hypothesis of equal means, we derive empirical and hierarchical Bayes estimators which shrink the sample mean vector toward a pooled mean estimator given under the hypothesis. The minimaxity of those Bayesian estimators are shown, and their performances are investigated by simulation.
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