In this paper, failure step stress-partially accelerated life tests (FSS-PALT) are considered when the lifetime of a product follows a generalized inverted Rayleigh distribution (GIRD). Based on Type II censoring, the maximum likelihood estimates (MLEs) of model parameters are obtained. Also, the asymptotic variances and covariances matrix of the estimators is studied. The optimum proportion of...

In many life-testing and reliability studies, the experimenter might not always obtain complete information on failure times for all experimental units. Among the different censoring schemes, the progressive censoring scheme has received a considerable attention in the last few years. The aim of this paper is simplifying the entropy of progressively Type II censored samples. We propose an indir...

Prediction on the basis of censored data is very important topic in many fields including medical and engineering sciences. In this paper, based on progressive Type-II right censoring scheme, we will discuss Bayesian two-sample prediction. A general form for lifetime model including some well known and useful models such asWeibull and Pareto is considered for obtaining prediction bounds ...

The hybrid censoring is a mixture of type-I and type-II schemes. This paper presents the statistical inferences inverse Weibull distribution parameters when data are censored. First, we consider maximum likelihood estimates unknown parameters. It observed that can not be obtained in closed form. We further obtain Bayes corresponding highest posterior density credible intervals under assumption ...

In the absolutely continuous case, order statistics, record values and several other models of ordered random variables can be viewed as special cases of generalized order statistics, which enables a unified treatment of their theory. This paper deals with discontinuous generalized order statistics, continuing on the recent work of Tran (2006). Specifically, we show that in general neither re...

Comparative lifetime tests are extremely significant when the experimenters study reliability of comparative advantages two products in competition. Considering joint type-II censoring, we deal with inference product lines conform to Gumbel distributions. The maximum likelihood estimations population parameters were obtained current research. An approximate confidence interval and a simultaneou...

This article discusses the estimation of Generalized Power Weibull parameters using maximum product spacing (MPS) method, likelihood (ML) method and Bayesian under squares error for loss function. The is done progressive type-II censored samples a comparative study among three methods made Monte Carlo Simulation. Markov chain (MCMC) has been employed to compute Bayes estimators distribution. op...

Accelerated life tests are used to explore the lifetime of extremely reliable items by subjecting them elevated stress levels from stressors cause early failures, such as temperature, voltage, pressure, and so on. The alpha power inverse Weibull (APIW) distribution is great significance practical applications due its appealing characteristics, flexibilities in probability density function hazar...