Bayesian Estimation of the Shape Parameter of Lomax Distribution under Uniform and Jeffery Prior with Engineering Applications

Year 2021, Volume: 34 Issue: 2, 562 - 577, 01.06.2021

Muhammad Ijaz

https://doi.org/10.35378/gujs.766419

Cited By: 1

Abstract

In engineering, it is usual to model the data so as to make a decision under the problem of uncertainty. Commonly, the data in engineering is skewed to the right, and the skewed distributions in statistics are the appropriate models for making a decision under the Bayesian paradigm. To model the lifetime of an electronic device, an engineer can use the Bayesian estimators to compute the effect of the evidence in increasing the probability for the lifetime of an electronic device by using the prior information. This study presents an estimation of the shape parameter of Lomax distribution under Uniform and Jeffery prior by adopting SELF, QELF, WSELF, and the PELF. The significance of various estimators is compared and presented in graphs using simulated data under the Bayesian paradigm. It was determined that under a uniform prior, Bayes estimator under weighted error loss function (BWEL) provides a better result than others. Under Jeffery prior, the precautionary error loss function (BPEL) leads to a better result than others. Moreover, an application to engineering is also presented for illustration purposes.

Keywords

Lomax distribution, Uniform prior, Jeffery prior, Applications

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