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Some New Results on Stochastic Comparisons of Spacings of Generalized Order Statistics from One and Two Samples

Author

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  • Maryam Esna-Ashari

    (Insurance Research Center, Tehran 1998758513, Iran)

  • Mahdi Alimohammadi

    (Department of Statistics, Faculty of Mathematical Sciences, Alzahra University, Tehran 1993893973, Iran)

  • Elnaz Garousi

    (Department of Statistics, Faculty of Mathematical Sciences, Alzahra University, Tehran 1993893973, Iran)

  • Antonio Di Crescenzo

    (Dipartimento di Matematica, Università degli Studi di Salerno, Via Giovanni Paolo II n.132, 84084 Fisciano, Italy)

Abstract

Generalized order statistics (GOSs) are often adopted as a tool for providing a unified approach to several stochastic models dealing with ordered random variables. In this contribution, we first recall various useful results based on the notion of total positivity. Then, some stochastic comparisons between spacings of GOSs from one sample, as well as two samples, are developed under the more general assumptions on the parameters of the model. Specifically, the given results deal with the likelihood ratio order, the hazard rate order and the mean residual life order. Finally, an application is demonstrated for sequential systems.

Suggested Citation

  • Maryam Esna-Ashari & Mahdi Alimohammadi & Elnaz Garousi & Antonio Di Crescenzo, 2024. "Some New Results on Stochastic Comparisons of Spacings of Generalized Order Statistics from One and Two Samples," Mathematics, MDPI, vol. 12(10), pages 1-19, May.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:10:p:1489-:d:1392113
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    References listed on IDEAS

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