The Weibull Fréchet distribution and its applications
Journal of Applied Statistics • 2016
Publication Information
Authors
Ahmed Z. Afify;Haitham M. Yousof;Gauss M. Cordeiro;Edwin M. M. Ortega;Zohdy M. Nofal
Keywords
Maximum likelihood;
moment; order statistics;
probability weighted
moment; Rényientropy;
Weibull G-family
Journal
Journal of Applied Statistics
Publisher
Taylor and Francis
Volume
43
Issue
14
Pages
2608-2626
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
A new four-parameter lifetime model called the Weibull Fréchet distribution is defined and studied. Various of its structural properties including ordinary and incomplete moments, quantile and generating functions, probability weighted moments, Rényi andδ-entropies and order statistics are investigated. The new density function can be expressed as a linear mixture of Fréchet densities. The maximum likelihood method is used to estimate the model parameters. The new distribution is applied to two real data sets to prove empirically its flexibility. It can serve as an alternative model to other lifetime distributions in the existing literature for modeling positive real data in many areas.
Staff Members - Benha University