首页> 外文期刊>Statistical Methods and Applications >An improved class of estimators for the population mean
【24h】

An improved class of estimators for the population mean

机译:改进的总体均值估计器类别

获取原文
获取原文并翻译 | 示例
       

摘要

Starting from the Rao (Commun Stat Theory Methods 20:3325-3340, 1991) regression estimator, we propose a class of estimators for the unknown mean of a survey variable when auxiliary information is available. The bias and the mean square error of the estimators belonging to the class are obtained and the expressions for the optimum parameters minimizing the asymptotic mean square error are given in closed form. A simple condition allowing us to improve the classical regression estimator is worked out. Finally, in order to compare the performance of some estimators with the regression one, a simulation study is carried out when some population parameters are supposed to be unknown.
机译:从Rao(Commun Stat Theory Methods 20:3325-3340,1991)回归估计量开始,当辅助信息可用时,我们针对调查变量的未知平均值提出了一种估计量。得到属于该类的估计量的偏差和均方误差,并以封闭形式给出最小化渐进均方误差的最佳参数的表达式。提出了一个简单的条件,使我们可以改进经典回归估计量。最后,为了将某些估计量的性能与回归估计量的性能进行比较,当一些总体参数应该未知时,进行了模拟研究。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号