Estimation of a distribution function with increasing failure rate average
El Barmi, Hammou Malla, Ganesh B. Mukerjee, Hari
El Barmi, Hammou
Malla, Ganesh B.
Mukerjee, Hari
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2021-07
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Arg max theorem,Convergence in distribution,Cumulative failure rate,Uniform consistency
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Hammou El Barmi, Ganesh Malla, Hari Mukerjee, Estimation of a distribution function with increasing failure rate average, Journal of Statistical Planning and Inference, Volume 213,2021,Pages 179-192, ISSN 0378-3758, https://doi.org/10.1016/j.jspi.2020.09.002.
Abstract
A life distribution function F is said to have an increasing failure rate average if H(x)∕x is nondecreasing where H(x) is the corresponding cumulative hazard function. In this paper we provide a uniformly strongly consistent estimator of F and derive the convergence in distribution of the estimator at a point where H(x)∕x is increasing using the arg max theorem. We also show using simulations that, unlike other estimators of the past, this new estimator outperforms the empirical distribution in terms of mean square error at all quantiles. An example is also discussed to illustrate the theoretical results © 2020 Elsevier B.V.
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Elsevier B.V.
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Journal of Statistical Planning and Inference
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03783758