Exponentiated power Lindley power series class of distributions: Theory and applications. Issue 9 (21st October 2018)

• Record Type: Journal Article
• Authors: Alizadeh, M.; Bagheri, S.F.; Samani, E. Bahrami; Ghobadi, S.; Nadarajah, S.
• Is Part Of: Communications in statistics. Volume 47:Issue 9(2018)
• Page Start: 2499
• Page End: 2531
• Publication Date: 2018-10-21
• Subjects: Hazard rate function -- Maximum likelihood estimation -- Model selection criteria -- Power series distributions -- Residual life function.; 60EXX -- 60E05; Mathematical statistics -- Periodicals; Mathematical statistics -- Data processing -- Periodicals; Digital computer simulation -- Periodicals; 519.5
• DOI: 10.1080/03610918.2017.1350270
• Languages: English
• ISSNs: 0361-0918

Abstract

ABSTRACT: We introduce a new four-parameter generalization of the exponentiated power Lindley (EPL) distribution, called the exponentiated power Lindley power series (EPLPS) distribution. The new distribution arises on a latent complementary risks scenario, in which the lifetime associated with a particular risk is not observable; rather, we observe only the minimum lifetime value among all risks. The distribution exhibits a variety of bathtub-shaped hazard rate functions. It contains as particular cases several lifetime distributions. Various properties of the distribution are investigated including closed-form expressions for the density function, cumulative distribution function, survival function, hazard rate function, the r th raw moment, and also the moments of order statistics. Expressions for the Rényi and Shannon entropies are also given. Moreover, we discuss maximum likelihood estimation and provide formulas for the elements of the Fisher information matrix. Finally, two data applications are given showing flexibility and potentiality of the EPLPS distribution.