“…For instance, estimations of unknown parameters, using methods such as the method of moment, the likelihood approach, least square methods, nonlinear regression estimators, robust estimation methods, and Bayesian methods, have been applied to Weibull distribution (Bain & Engelhardt, 1980;Duffy, Starlinger, & Powers, 1993;Lockhart & Stephens, 1994;Kuo & Yang, 1996;Ryan, 2003;Verma & Kapur, 2006;Sürücü & Sazak, 2009). In hypotheses tests, Lockhart and Stephens (1994) introduced the empirical distribution function methods to test whether the considered sample follows the threeparameter Weibull distribution.…”