ruth@utstat.uucp (Ruth Croxford) (03/29/89)
Colloquium Series, Department of Statistics, University of Toronto
Topic: Exact Confidence Intervals, Based on the Z Statistics, for the
Difference Between Two Proportions
Speaker: Andrew P. Soms
Center for the Mathematical Sciences
University of Wisconsin-Madison and the University of Wisconsin -
Milwaukee
Date: Thursday, April 6, 1989 4:00 p.m.
Place: Room 2108, Sidney Smith Hall, 100 St. George St., U of T
Abstract:
We show that the confidence interval version of the extended exact uncon-
ditional Z test of Suissa and Shuster (1985) for testing the equality of two
binomial proportions is due to general results of Buehler (1957), Sudakov and
references cited there (1974), and Harris and Soms (1984). We apply these
results to obtain exact unconditional confidence intervals for the difference
between two proportions, deriving an explicit solution for special outcomes,
make some comments on Buehler's (1957) method, and compare the P levels of the
Z test and Fisher's exact test.
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Coffee and tea will be served in the De Lury Lounge (SS6006) at 3:30 p.m.