A Generalized Rayleigh Family of Distributions Based on the Modified Slash Model
Date Issued
2021
Author(s)
Barranco-Chamorro, Inmaculada
Iriarte, Yuri A.
Gomez, Yolanda M.
Astorga, Juan M.
Gomez, Hector W.
DOI
http://dx.doi.org/10.3390/sym13071226
Abstract
Specifying a proper statistical model to represent asymmetric lifetime data with high kurtosis is an open problem. In this paper, the three-parameter, modified, slashed, generalized Rayleigh family of distributions is proposed. Its structural properties are studied: stochastic representation, probability density function, hazard rate function, moments and estimation of parameters via maximum likelihood methods. As merits of our proposal, we highlight as particular cases a plethora of lifetime models, such as Rayleigh, Maxwell, half-normal and chi-square, among others, which are able to accommodate heavy tails. A simulation study and applications to real data sets are included to illustrate the use of our results.


