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Research Article Open Access
Weibull and log-logistic distributions are two popular distributions for analyzing lifetime data. In this paper it is assumed that the data are coming either from Weibull or log-logistic distributions. The maximized likelihood ratio test to discriminate between the two distributions is used. The asymptotic distributions of the logarithm of the ratio of the maximized likelihood are obtained. These asymptotic results are used to estimate the probability of correct selection and the minimum sample size needed to discriminate between the two distributions. Two real data life are analyzed to see how the proposed method works in practice.
Asymptotic distribution, Weibull distribution, Log-logistic distribution, Maximized likelihood ratio statistic, Probability of correct selection, Applied Sciences,Biochemistry,Biomedical Engineering,Botany,Fluid Dynamics.