Title

Bounds of moment generating functions of some life distributions

Authors

Authors

I. A. Ahmad;A. R. Mugdadi

Comments

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Abbreviated Journal Title

Stat. Pap.

Keywords

life distributions; moment generating functions; Laplace transformation; Poisson shock model; residual life time; stationary life time; RENEWAL; Statistics & Probability

Abstract

In this article we show that if a life has new better than used in expectation (NBUE) ageing property and if the mean life is finite then the moment generating function exists and is finite. In fact, the moment generating function is shown to be bounded above by that of the exponential distribution with the same mean. Analogous results are also proven for two much bigger families of life distribution, namely, the new better than renewal used in expectation (NBRUE) and the renewal new is better than used in expectation (RNBUE) and the renewal new better than renewal used in expectation (RNBRUE), provided that the life has finite two moments. Further, stronger results are also obtained for the smaller new better than used version of the above classes.

Journal Title

Statistical Papers

Volume

46

Issue/Number

4

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

575

Last Page

585

WOS Identifier

WOS:000232138600006

ISSN

0932-5026

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