Lifetime test evaluation with mathcad®: Automated weibull parameter and plotting point estimate with arbitrary confidence interval and graphics

Abstract

This application note describes a computer‐based method for automated evaluation of Weibull‐distributed life‐time data. It uses comercially available software, MathCad, to set up equations and graphs. The computer application is a simple and non‐expensive way of evaluating and displaying your life‐time data taking into consideration both parametric and non‐parametric confidence intervals. It is valid for arbitrarily censored data.