You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
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
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
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