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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
In this paper, we compare the largest orders statistics arising fromindependent heterogeneous gamma random variables according to thethe reversed hazard rate order. The resultderived here strengthens and generalizes some of the results known inthe literature. Some numerical examples are also provided toillustrate the main result.
Keywords:Reliability theory; gamma distribution; Reversed hazardrate order; Majorization; Parallel system