Abstract

In this article, we consider the step-stress partially accelerated life tests for highly reliable units/components to obtain the failure time observations from Generalized Rayleigh distribution under type-II censoring scheme. The maximum likelihood estimates of model parameters and acceleration factor are carried out by using R software. A Monte Carlo simulation study is performed to investigate the precision of the maximum likelihood estimates and also to obtain the coverage probabilities of the bootstrap-t and percentile bootstrap confidence intervals for the parameters. Finally, an example is presented to illustrate both the methods of bootstrap confidence intervals.

Author: N. Chandra and Mashroor Ahmad Khan

Received on: May, 2015

Accepted on: November, 2016