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On estimating population characteristics from record-breaking observations. I: Parametric results. (English) Zbl 0605.62027
Consider an experiment in which only record-breaking values (e.g., values smaller than all previous ones) are observed. The data available may be represented as \(X_ 1,K_ 1,X_ 2,K_ 2,...\), where \(X_ 1,X_ 2,..\). are successive minima and \(K_ 1,K_ 2,..\). are the numbers of trials needed to obtain new records.
We treat the problem of estimating the mean of an underlying exponential distribution, and we consider both fixed sample size problems and inverse sampling schemes. Under inverse sampling, we demonstrate certain global optimality properties of an estimator based on the ”total time on test” statistic. Under random sampling, it is shown than an analogous estimator is consistent, but can be improved for any fixed sample size.

MSC:
62F10 Point estimation
62P30 Applications of statistics in engineering and industry; control charts
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