Abstract

Let n similar components with Weibull lives be put on life-test simultaneously, and let the first r failures be observed. A prediction interval for failure-time X/sub k/, 0<r<k/spl les/n, is constructed. An explicit formula is obtained for computing quantiles of a relevant pivotal statistic. Prediction intervals based on various estimators of parameters and methods are compared. The results can be used to predict the failure-time of a k-out-of-n:F system.

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