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Abstract

In this paper, a new four-parameter lifetime distribution, called the exponentiated Lomax geometric (ELG) is introduced. The new lifetime distribution contains the Lomax geometric and exponentiated Pareto geometric as new sub-models. Explicit algebraic formulas of probability density function, survival and hazard functions are derived. Various structural properties of the new model are derived including; quantile function, Re'nyi entropy, moments, probability weighted moments, order statistic, Lorenz and Bonferroni curves. The estimation of the model parameters is performed by maximum likelihood method and inference for a large sample is discussed. The flexibility and potentiality of the new model in comparison with some other distributions are shown via an application to a real data set. We hope that the new model will be an adequate model for applications in various studies.

Keywords

Exponentiated Lomax distribution geometric distribution Maximum likelihood estimation

Article Details

How to Cite
Hassan, A. S., & Abdelghafar, M. A. (2017). Exponentiated Lomax Geometric Distribution: Properties and Applications. Pakistan Journal of Statistics and Operation Research, 13(3), 545-566. https://doi.org/10.18187/pjsor.v13i3.1437