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Abstract
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Cooray and Ananda (2008) pioneered a lifetime model commonly used in reliability studies.
Based on this distribution, we propose a new model called the odd-log-logistic generalized
half-normal distribution for describing fatigue lifetime data. Various of its structural properties
are derived. We discuss the method of maximum likelihood to fit the model parameters. For
different parameter settings and sample sizes, some simulation studies compare the performance
of the new lifetime model. It can be very useful and its superiority is illustrated by means of a
real data set.
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