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Comparison of stochastically ordered gamma survival curves. (Spanish. English summary) Zbl 1006.62088

Summary: A survival analysis using a gamma model is proposed. The theoretical conditions for two survival gamma functions to be stochastically ordered are obtained. These results are used to propose a simple method that allows the comparison of two populations when it is known that they are stochastically ordered. The paper concludes with the analysis of a unemployment data bank.

MSC:

62N99 Survival analysis and censored data
60E15 Inequalities; stochastic orderings
62F15 Bayesian inference
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