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. Author manuscript; available in PMC: 2010 Feb 22.
Published in final edited form as: Biometrika. 2005 Jun 1;92(2):271–282. doi: 10.1093/biomet/92.2.271

Table 2.

Example 2. Confidence intervals and the corresponding coverage based on the empirical likelihood (EL) and normal approximation (Norm) methods

Sample size CI(95%) coverage
n m cx cy EL Norm EL Norm
30 30 12.5 15 (0.403, 0.777) (0.245, 1.005) 96.90 100
20 (0.411, 0.785) (0.274, 0.976) 97.20 100
15 15 (0.46, 0.792) (0.254, 0.996) 98.05 100
20 (0.455, 0.789) (0.282, 0.968) 98.35 100
50 50 12.5 15 (0.460, 0.755) (0.333, 0.917) 96.55 100
20 (0.461, 0.758) (0.355, 0.895) 97.40 100
15 15 (0.506, 0.769) (0.341, 0.909) 98.15 100
20 (0.506, 0.768) (0.363, 0.887) 98.35 100
100 100 12.5 15 (0.507, 0.723) (0.420, 0.830) 96.05 100
20 (0.508, 0.722) (0.435, 0.815) 96.65 100
15 15 (0.553, 0.742) (0.426, 0.824) 98.10 100
20 (0.551, 0.740) (0.440, 0.810) 98.30 100

CI(95%), approximate 95% confidence interval.