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The complementary exponential geometric distribution: Model, properties, and a comparison with its counterpart

The complementary exponential geometric distribution: Model, properties, and a comparison with its counterpart,10.1016/j.csda.2011.02.018,Computationa

The complementary exponential geometric distribution: Model, properties, and a comparison with its counterpart   (Citations: 2)
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In this paper, we proposed a new two-parameter lifetime distribution with increasing failure rate, the complementary exponential geometric distribution, which is complementary to the exponential geometric model proposed by Adamidis and Loukas (1998). 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 maximum lifetime value among all risks. The properties of the proposed distribution are discussed, including a formal proof of its probability density function and explicit algebraic formulas for its reliability and failure rate functions, moments, including the mean and variance, variation coefficient, and modal value. The parameter estimation is based on the usual maximum likelihood approach. We report the results of a misspecification simulation study performed in order to assess the extent of misspecification errors when testing the exponential geometric distribution against our complementary one in the presence of different sample size and censoring percentage. The methodology is illustrated on four real datasets; we also make a comparison between both modeling approaches.
Journal: Computational Statistics & Data Analysis - CS&DA , vol. 55, no. 8, pp. 2516-2524, 2011
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