Testing the equality among distribution functions from independent and right censored samples via Cram�r--von Mises criterion

Pablo Mart�nez-Camblor

Journal of Applied Statistics, 2011, vol. 38, issue 6, 1117-1131

Abstract: The traditional Cram�r--von Mises criterion is used in order to develop a test to compare the equality of the underlying lifetime distributions in the presence of independent censoring times. Its asymptotic distribution is proved and a resampling plan, which is valid for unbalanced data situations, is proposed. Its statistical power is studied and compared with commonly used linear rank tests by Monte Carlo simulations and a real data analysis is also considered. It is observed that the new test is clearly more powerful than the traditional ones when there exists no uniform dominance among involved distributions and in the presence of late differences. Its statistical power is also good in the other considered scenarios.

Date: 2011
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DOI: 10.1080/02664763.2010.484486

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