“…Nelson [18] gave a simple procedure for computing prediction limit for the number of failures that will be observed in a future inspection, based on the number of failures in a previous inspection when the units have a Weibull failure-time distribution with a given shape parameter. Based on censoring samples, Lu et al [15], provide some pivotal quantities for constructing prediction intervals for future observations from the 2-parameter Weibull distribution. Recently, several authors considered the problem of prediction based on various types of censored data, see among others [1,16,22].…”