Bayesian estimation of the generalized lognormal distribution using objective priors. (English) Zbl 07192004
Summary: The generalized lognormal distribution plays an important role in analysing data from different life testing experiments. In this paper, we consider Bayesian analysis of this distribution using various objective priors for the model parameters. Specifically, we derive expressions for the Jeffreys-type priors, the reference priors with different group orderings of the parameters, and the first-order matching priors. We also study the properties of the posterior distributions of the parameters under these improper priors. It is shown that only two of them result in proper posterior distributions. Numerical simulation studies are conducted to compare the performances of the Bayesian estimators under the considered priors and the maximum likelihood estimates. Finally, a real-data application is also provided for illustrative purposes.
MSC:
| 62F10 | Point estimation |
| 62F15 | Bayesian inference |
| 62N02 | Estimation in survival analysis and censored data |
Keywords:
Bayesian estimator; Gibbs sampler; maximum likelihood estimate; objective priors; posterior proprietyReferences:
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