Journal
COMPUTATIONAL STATISTICS & DATA ANALYSIS
Volume 53, Issue 4, Pages 1080-1085Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.csda.2008.09.033
Keywords
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Funding
- Early Researcher Award
- Ontario Ministry of Research and Innovation, Canada
- Natural Sciences and Engineering Research Council (NSERC) of Canada
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The Wilson score confidence interval for a binomial proportion has been widely applied in practice, due largely to its good performance in finite samples and its simplicity in calculation. We propose its use in setting confidence limits for a linear function of binomial proportions using the method of variance estimates recovery. Exact evaluation results show that this approach provides intervals that are narrower than the ones based on the adjusted Wald interval while aligning the mean coverage with the nominal level. (C) 2008 Elsevier B.V. All rights reserved.
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