This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.

Abstract Details

Activity Number: 71
Type: Contributed
Date/Time: Sunday, August 1, 2010 : 4:00 PM to 5:50 PM
Sponsor: Biometrics Section
Abstract - #308224
Title: Application of Anbar's Approach to Hypothesis Testing to Detect the Difference Between Two Proportions
Author(s): Ananya Roy*+ and Julia Soulakova
Companies: University of Nebraska-Lincoln and University of Nebraska-Lincoln
Address: Department of Statistics, Lincoln, NE, 68583-0963, USA

We discuss Anbar's(1983) approach for estimating a difference between two binomial proportions with respect to a hypothesis testing problem. Such an approach results in two possible testing strategies. While the results of the tests are expected to agree for a large sample size when two proportions are equal, the tests are shown to perform quite differently in terms of their probabilities of a type I error for selected sample sizes. Moreover, the tests can lead to different conclusions, which are illustrated via a simple example; and the probability of such cases can be relatively large. We propose a modified test and assess the performance of this test compared to the conventional test based on normal approximation. The modified Anbar's test is shown to control the probability of a type I error better for moderate sample sizes.

The address information is for the authors that have a + after their name.
Authors who are presenting talks have a * after their name.

Back to the full JSM 2010 program

2010 JSM Online Program Home

For information, contact or phone (888) 231-3473.

If you have questions about the Continuing Education program, please contact the Education Department.