Analysis of simple step-stress accelerated life test data from Lindley distribution under type-I censoring

Abstract

This article introduces step-stress accelerated life time model with Lindley lifetime under type-I censoring. The corresponding likelihood function is developed and parameter estimation by maximum likelihood approach is discussed. Also, parametric bootstrap confidence intervals are constructed for the unknown parameters. Simulation study is carried out to evaluate performance of the estimators of the proposed model.

Keywords

• Accelerated life testing
• Bootstrap
• Lindley distribution
• Maximum likelihood estimation
• Type-I censoring