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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115824

    Title: Estimation of the parameters and expected test time of exponentiated Weibull lifetimes under type II progressive censoring scheme with random removals
    Authors: Fathy H. Eissa;Shuo-Jye Wu;Hamid H. Ahmed
    Keywords: progressive type-II censoring;random removals;maximum likelihood estimation;confidence interval;coverage probability;expected test time;exponentiated Weibull model
    Date: 2019-03
    Issue Date: 2019-02-23 12:12:10 (UTC+8)
    Abstract: Based on progressive type-II censored sample with random removals, point and interval estimations for the shape parameters of the exponentiated Weibull distribution are discussed. Computational formula for the expected total test time are derived for different situations of sampling plans. This is useful in planning a life test experiment. The efficiency of the estimators are compared in terms of the root mean square error, the variance and the coverage probability of the corresponding confidence intervals. A simulation study is presented for several values of removal probability and different values of failure percentage. Also, numerical applications are conducted to illustrate and compare the usefulness of the different sampling plans in terms of expected test times for different patterns of failure rates.
    Relation: International Journal of Statistics and Probability 8(2), p.124-139
    DOI: 10.5539/ijsp.v8n2p124
    Appears in Collections:[Graduate Institute & Department of Statistics] Journal Article

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