A note on likelihood ratio ordering between parallel systems with two exponential components

Volume 19, Issue 4, pp 251--257 http://dx.doi.org/10.22436/jmcs.019.04.05
Publication Date: July 07, 2019 Submission Date: January 02, 2019 Revision Date: May 30, 2019 Accteptance Date: June 23, 2019

Authors

Emanuel Emanouilidis - School of Computer Science, Kean University, Union, NJ, 07083, USA. Jiantian Wang - School of Mathematical Science, Kean University, Union, NJ, 07083, USA.


Abstract

With the aid of computer programming, we obtain a result on stochastic comparison of the lifetime of two parallel systems with two exponential components in terms of likelihood ratio ordering. This result reveals a more comprehensive picture on stochastic ordering between parallel systems and thus provides a relatively satisfied answer to an open problem raised in [N. Balakrishnan, P. Zhao, Probab. Engrg. Inform. Sci., \(\bf 27\) (2013), 403--443].


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