Estimation of distributions with the new better than used in expectation property

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Issue Date
2013-05
Authors
Lorenzo, Edgardo
Malla, Ganesh B.
Mukerjee, Hari
Advisor
Citation

Lorenzo, Edgardo; Malla, Ganesh; Mukerjee, Hari. 2013. Estimation of distributions with the new better than used in expectation property. Statistics & Probability Letters, v.83 no.5 pp.1346-1352

Abstract

A lifetime X with survival function S, mean residual life function (MRL) M, and finite mean μ is said to be new better than used in expectation (NBUE) if M(t)≤μ for all t≥0. We propose a new estimator for S, based on a natural estimator of M defined under the NBUE restriction. This is much simpler to implement than the only other restricted estimator in the literature. We also derive some asymptotic properties of the MRL of X and extend our results to the censored case.

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