The Exponentiated Lindley Geometric Distribution with Applications

We introduce a new three-parameter lifetime distribution, the exponentiated Lindley geometric distribution, which exhibits increasing, decreasing, unimodal, and bathtub shaped hazard rates. We provide statistical properties of the new distribution, including shape of the probability density function...

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Bibliographic Details
Main Authors: Bo Peng, Zhengqiu Xu, Min Wang
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/21/5/510
Description
Summary:We introduce a new three-parameter lifetime distribution, the exponentiated Lindley geometric distribution, which exhibits increasing, decreasing, unimodal, and bathtub shaped hazard rates. We provide statistical properties of the new distribution, including shape of the probability density function, hazard rate function, quantile function, order statistics, moments, residual life function, mean deviations, Bonferroni and Lorenz curves, and entropies. We use maximum likelihood estimation of the unknown parameters, and an Expectation-Maximization algorithm is also developed to find the maximum likelihood estimates. The Fisher information matrix is provided to construct the asymptotic confidence intervals. Finally, two real-data examples are analyzed for illustrative purposes.
ISSN:1099-4300