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Exact Confidence Intervals Following a Group Sequential Test
Anastasios A. Tsiatis, Gary L. Rosner and Cyrus R. Mehta
Vol. 40, No. 3 (Sep., 1984), pp. 797-803
Published by: International Biometric Society
Stable URL: http://www.jstor.org/stable/2530924
Page Count: 7
You can always find the topics here!Topics: Confidence interval, Statistics, Clinical trials, Statistical variance, Stopping distances, Biometrics, Sample mean, Gaussian distributions, Binomials, Null hypothesis
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A numerical method is used to compute confidence intervals, which have exact coverage probabilities, for the mean of a normal distribution following a group sequential test. This method, which uses an ordering of the sample space similar to that employed by Siegmund (1978, Biometrika 65, 341-349), is contrasted with the usual confidence interval for the mean.
Biometrics © 1984 International Biometric Society