期刊
JOURNAL OF APPLIED STATISTICS
卷 43, 期 14, 页码 2608-2626出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02664763.2016.1142945
关键词
Maximum likelihood; moment; order statistics; probability weighted moment; Renyientropy; Weibull G-family
A new four-parameter lifetime model called the Weibull Frechet distribution is defined and studied. Various of its structural properties including ordinary and incomplete moments, quantile and generating functions, probability weighted moments, Renyi and -entropies and order statistics are investigated. The new density function can be expressed as a linear mixture of Frechet densities. The maximum likelihood method is used to estimate the model parameters. The new distribution is applied to two real data sets to prove empirically its flexibility. It can serve as an alternative model to other lifetime distributions in the existing literature for modeling positive real data in many areas.
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