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Interval and Point Estimators for the Location Parameter of the Three-Parameter Lognormal Distribution

机译:三参数对数正态分布的位置参数的区间和点估计

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摘要

The three-parameter lognormal distribution is the extension of the two-parameter lognormal distribution to meet the need of the biological, sociological, and other fields. Numerous research papers have been published for the parameter estimation problems for the lognormal distributions. The inclusion of the location parameter brings in some technical difficulties for the parameter estimation problems, especially for the interval estimation. This paper proposes a method for constructing exact confidence intervals and exact upper confidence limits for the location parameter of the three-parameter lognormal distribution. The point estimation problem is discussed as well. The performance of the point estimator is compared with the maximum likelihood estimator, which is widely used in practice. Simulation result shows that the proposed method is less biased in estimating the location parameter. The large sample size case is discussed in the paper.
机译:三参数对数正态分布是两参数对数正态分布的扩展,可以满足生物学,社会学和其他领域的需求。对于对数正态分布的参数估计问题,已经发表了许多研究论文。位置参数的包含给参数估计问题,特别是间隔估计带来了一些技术上的困难。本文提出了一种为三参数对数正态分布的位置参数构造精确的置信区间和精确的置信上限的方法。还讨论了点估计问题。将点估计器的性能与实际中广泛使用的最大似然估计器进行比较。仿真结果表明,该方法在估计位置参数时有较小的偏差。本文讨论了大样本情况。

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  • 作者

    Zhenmin Chen; Feng Miao;

  • 作者单位

    Department of Mathematics and Statistics, Florida International University, Miami, FL 33199, USA;

    Department of Mathematics and Statistics, Florida International University, Miami, FL 33199, USA;

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  • 正文语种 eng
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