Estimation of location extremes within general families of scale mixtures |
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Authors: | Mark Carpenter |
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Affiliation: | Medical Statistics Section, University of Alabama at Birmingham, Birmingham, AL 35294, USA |
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Abstract: | In this paper, we study the estimation of the minimum and maximum location parameters, respectively, representing the minimum guaranteed lifetime of series and parallel systems of components, within a general class of scale mixtures. The conditional or underlying distribution has only the primary restriction of being a location-scale family with positive support. The mixing distribution is also quite general in that we only assume that it has positive support and finite second moment. For demonstrative purposes several special cases are highlighted such as the gamma, inverse-Gaussian, and discrete mixture. Various estimators, including bootstrap bias corrected estimators, are compared with respect to both mean-squared-error and Pitman's measure of closeness. |
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Keywords: | Common environment Pitman's measure of closeness Bootstrap bias corrected estimator Mean-squared-error Dependency through mixture |
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