Orderings for series and parallel systems comprising heterogeneous new extended Weibull components

Mostafa Sattari, Abdin Haidari and Ghobad Barmalzan

Communications in Statistics - Theory and Methods, 2023, vol. 52, issue 19, 6778-6793

Abstract: This paper examines the problem of stochastic comparisons of series and parallel systems with independent heterogeneous new extended Weibull distributed components. For series systems, we obtain the usual stochastic order via the concepts of weak weighted and unordered majorization orders. Also, we strengthen this result to the hazard rate order under a restriction. For parallel systems, with the help of weak supermajorization and weak submajorization orders, we establish the usual stochastic order. The results of this paper can be used to find some bounds for the important aging characteristics of series and parallel systems consisting of independent heterogeneous new extended Weibull distributed components.

Date: 2023
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DOI: 10.1080/03610926.2022.2033267

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