Weibull Prediction Intervals for a Future Number of Failures
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2000-09-26
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Meeker, William
Distinguished Professor
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Statistics
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Abstract
This article evaluates exact coverage probabilities of approximate prediction intervals for the number offailures that will be observed in a future inspection of a sample of units, based only on the results of the first in-service inspection of the sample. The failure time of such units is modeled with a Weibulldistribution having a given shape parameter value. We illustrate the use of the procedures by using data from a nuclear power plant heat exchanger. The results suggest that the likelihood-based predictionintervals perform better than the alternatives.
Comments
This preprint was published in Technometrics 44 (2002): 15–23, doi:10.1198/004017002753398191.