On a goodness-of-fit test for normality with unknown parameters and type-II censored data

Claudia Castro-Kuriss, Diana Kelmansky, Victor Leiva and Elena Martinez

Journal of Applied Statistics, 2010, vol. 37, issue 7, 1193-1211

Abstract: We propose a new goodness-of-fit test for normal and lognormal distributions with unknown parameters and type-II censored data. This test is a generalization of Michael's test for censored samples, which is based on the empirical distribution and a variance stabilizing transformation. We estimate the parameters of the model by using maximum likelihood and Gupta's methods. The quantiles of the distribution of the test statistic under the null hypothesis are obtained through Monte Carlo simulations. The power of the proposed test is estimated and compared to that of the Kolmogorov-Smirnov test also using simulations. The new test is more powerful than the Kolmogorov-Smirnov test in most of the studied cases. Acceptance regions for the PP, QQ and Michael's stabilized probability plots are derived, making it possible to visualize which data contribute to the decision of rejecting the null hypothesis. Finally, an illustrative example is presented.

Keywords: Kolmogorov-Smirnov test; maximum likelihood and Gupta's estimators; Monte Carlo simulation; PP; QQ and stabilized probability plots (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (1)

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DOI: 10.1080/02664760902984626

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