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A two-parameter lifetime distribution with decreasing failure rate. (English) Zbl 1245.62128
Summary: A new two-parameter life time distribution with decreasing failure rate is introduced. Various properties of the proposed distribution are discussed. The estimation of the parameters attained by the EM algorithm and their asymptotic variances and covariances are obtained. In order to assess the accuracy of the approximation of variances and covariances of the maximum likelihood estimators, simulation studies are performed and experimental results are illustrated based on real data sets.

MSC:
62N05 Reliability and life testing
62E10 Characterization and structure theory of statistical distributions
62F10 Point estimation
65C60 Computational problems in statistics (MSC2010)
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