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Fast and Accurate Approximate Double Bootstrap Confidence Intervals
Thomas J. DiCiccio, Michael A. Martin and G. Alastair Young
Vol. 79, No. 2 (Jun., 1992), pp. 285-295
Stable URL: http://www.jstor.org/stable/2336840
Page Count: 11
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We propose two new methods for the construction of approximate iterated bootstrap confidence intervals. Our methods follow a saddlepoint approach, but employ approximate rather than exact solutions to the nonlinear saddlepoint equations that arise in applying that technique. The main advantages of the new techniques are that they yield confidence intervals with high coverage accuracy in small- to moderately-sized samples and that they achieve this accuracy with very substantial reductions in computation time compared to other methods. We illustrate our methods on calculations of confidence intervals for a ratio of means and for a correlation coefficient.
Biometrika © 1992 Biometrika Trust