One and two sample confidence intervals for estimating the mean of skewed populations: an empirical comparative study

Ayman Baklizi and B.M. Golam Kibria

Journal of Applied Statistics, 2009, vol. 36, issue 6, 601-609

Abstract: In this paper we consider and propose some confidence intervals for estimating the mean or difference of means of skewed populations. We extend the median t interval to the two sample problem. Further, we suggest using the bootstrap to find the critical points for use in the calculation of median t intervals. A simulation study has been made to compare the performance of the intervals and a real life example has been considered to illustrate the application of the methods.

Keywords: bootstrapping; coverage probability; interval estimation; Johnson's t; mean; Student's t; skewness (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (3)

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DOI: 10.1080/02664760802474298

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