On the comparison of the Fisher information of the log-normal and generalized Rayleigh distributions

Fawziah Alshunnar, Mohammad Raqab and Debasis Kundu

Journal of Applied Statistics, 2010, vol. 37, issue 3, 391-404

Abstract: Surles and Padgett recently considered two-parameter Burr Type X distribution by introducing a scale parameter and called it the generalized Rayleigh distribution. It is observed that the generalized Rayleigh and log-normal distributions have many common properties and both distributions can be used quite effectively to analyze skewed data set. In this paper, we mainly compare the Fisher information matrices of the two distributions for complete and censored observations. Although, both distributions may provide similar data fit and are quite similar in nature in many aspects, the corresponding Fisher information matrices can be quite different. We compute the total information measures of the two distributions for different parameter ranges and also compare the loss of information due to censoring. Real data analysis has been performed for illustrative purposes.

Keywords: Fisher information matrix; Burr Type X distribution; generalized Rayleigh distribution; log-normal distribution; left censoring; right censoring (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1080/02664760802698961

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