Stochastic Comparisons of Extremes from Dependent and Heterogeneous Observations with a Generalization of Weibull Distribution

In this paper, we investigate stochastic comparisons of extreme order statistics from dependent and heterogeneous observations from a generalization of Weibull distribution, which is called exponentiated additive Weibull distribution (EADDWD). The usual stochastic order is developed for the minimum and maximum of dependent observations coupled by Archimedean copulas. We establish some results when some parameters vary and the other ones are kept fixed, with the help of vector majorization. Finally, some of theoretical findings are illustrated by numerical examples. Also, we try to provide a brief review on the existing articles have been studied the stochastic comparisons of order statistics from dependent observation.

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Publication Details

Journal
Mathematical Methods of Statistics
Published
2025-12-01
DOI
https://doi.org/10.3103/s1066530725700085
Primary Topic
Statistical Distribution Estimation and Applications
Type
article
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article

Stochastic Comparisons of Extremes from Dependent and Heterogeneous Observations with a Generalization of Weibull Distribution

Maryam Kelkinnama, Amaal Al-jabbar
Mathematical Methods of Statistics
Statistical Distribution Estimation and Applications
article

Stochastic Comparisons of Extremes from Dependent and Heterogeneous Observations with a Generalization of Weibull Distribution

Maryam Kelkinnama, Amaal Al-jabbar
article en

Abstract

In this paper, we investigate stochastic comparisons of extreme order statistics from dependent and heterogeneous observations from a generalization of Weibull distribution, which is called exponentiated additive Weibull distribution (EADDWD). The usual stochastic order is developed for the minimum and maximum of dependent observations coupled by Archimedean copulas. We establish some results when some parameters vary and the other ones are kept fixed, with the help of vector majorization. Finally, some of theoretical findings are illustrated by numerical examples. Also, we try to provide a brief review on the existing articles have been studied the stochastic comparisons of order statistics from dependent observation.

Mathematical Methods of StatisticsVol. 34(4)
Isfahan University of Technology (IR)
Openalex Percentile: Top 65%
Statistical Distribution Estimation and Applications
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