Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distribution

Mazucheli et al. introduced a new transformed model referred as the unit-Weibull (UW) distribution with uni- and anti-unimodal, decreasing and increasing shaped density along with bathtub shaped, constant and non-decreasing hazard rates. Here we consider inference upon stress and strength reliabilit...

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Main Authors: Refah Mohammed Alotaibi, Yogesh Mani Tripathi, Sanku Dey, Hoda Ragab Rezk
Format: Article
Language:English
Published: Taylor & Francis Group 2020-01-01
Series:Journal of Taibah University for Science
Subjects:
Online Access:http://dx.doi.org/10.1080/16583655.2020.1806525
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author Refah Mohammed Alotaibi
Yogesh Mani Tripathi
Sanku Dey
Hoda Ragab Rezk
author_facet Refah Mohammed Alotaibi
Yogesh Mani Tripathi
Sanku Dey
Hoda Ragab Rezk
author_sort Refah Mohammed Alotaibi
collection DOAJ
description Mazucheli et al. introduced a new transformed model referred as the unit-Weibull (UW) distribution with uni- and anti-unimodal, decreasing and increasing shaped density along with bathtub shaped, constant and non-decreasing hazard rates. Here we consider inference upon stress and strength reliability using different statistical procedures. Under the framework that stress–strength components follow UW distributions with a known shape, we first estimate multicomponent system reliability by using four different frequentist methods. Besides, asymptotic confidence intervals (CIs) and two bootstrap CIs are obtained. Inference results for the reliability are further derived from Bayesian context when shape parameter is known or unknown. Unbiased estimation has also been considered when common shape is known. Numerical comparisons are presented using Monte Carlo simulations and in consequence, an illustrative discussion is provided. Two numerical examples are also presented in support of this study. Significant conclusion: We have investigated inference upon a stress–strength parameter for UW distribution. The four frequentist methods of estimation along with Bayesian procedures have been used to estimate the system reliability with common parameter being known or unknown.
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spelling doaj.art-55cb50236e7442769979953a5e514baa2022-12-21T23:43:50ZengTaylor & Francis GroupJournal of Taibah University for Science1658-36552020-01-011411164118110.1080/16583655.2020.18065251806525Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distributionRefah Mohammed Alotaibi0Yogesh Mani Tripathi1Sanku Dey2Hoda Ragab Rezk3Mathematical Sciences Department, College of Science, Princess Nourah Bint Abdulrahman UniversityDepartment of Mathematics, Indian Institute of Technology PatnaDepartment of Statistics, St. Anthony's CollegeMathematical Sciences Department, College of Science, Princess Nourah Bint Abdulrahman UniversityMazucheli et al. introduced a new transformed model referred as the unit-Weibull (UW) distribution with uni- and anti-unimodal, decreasing and increasing shaped density along with bathtub shaped, constant and non-decreasing hazard rates. Here we consider inference upon stress and strength reliability using different statistical procedures. Under the framework that stress–strength components follow UW distributions with a known shape, we first estimate multicomponent system reliability by using four different frequentist methods. Besides, asymptotic confidence intervals (CIs) and two bootstrap CIs are obtained. Inference results for the reliability are further derived from Bayesian context when shape parameter is known or unknown. Unbiased estimation has also been considered when common shape is known. Numerical comparisons are presented using Monte Carlo simulations and in consequence, an illustrative discussion is provided. Two numerical examples are also presented in support of this study. Significant conclusion: We have investigated inference upon a stress–strength parameter for UW distribution. The four frequentist methods of estimation along with Bayesian procedures have been used to estimate the system reliability with common parameter being known or unknown.http://dx.doi.org/10.1080/16583655.2020.1806525bayesian point and interval proceduresleast square estimatorstress–strength reliabilitymaximum product of spacing estimator
spellingShingle Refah Mohammed Alotaibi
Yogesh Mani Tripathi
Sanku Dey
Hoda Ragab Rezk
Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distribution
Journal of Taibah University for Science
bayesian point and interval procedures
least square estimator
stress–strength reliability
maximum product of spacing estimator
title Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distribution
title_full Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distribution
title_fullStr Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distribution
title_full_unstemmed Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distribution
title_short Bayesian and non-Bayesian reliability estimation of multicomponent stress–strength model for unit Weibull distribution
title_sort bayesian and non bayesian reliability estimation of multicomponent stress strength model for unit weibull distribution
topic bayesian point and interval procedures
least square estimator
stress–strength reliability
maximum product of spacing estimator
url http://dx.doi.org/10.1080/16583655.2020.1806525
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