The views expressed here are those of the individual authors and not necessarily those of the JSM sponsors, their officers, or their staff.
Online Program Home
Abstract Details
|
Activity Number:
|
354
|
|
Type:
|
Contributed
|
|
Date/Time:
|
Tuesday, July 31, 2012 : 10:30 AM to 12:20 PM
|
|
Sponsor:
|
Section on Statistical Computing
|
| Abstract - #306264 |
|
Title:
|
Comparison of Population Means for Skewed Data with Unequal Variance
|
|
Author(s):
|
Evren Özkip*+ and Berna Yazici and Betul Kan and Ahmet Sezer
|
|
Companies:
|
Bursa Police College and Anadolu University and Anadolu University and Anadolu University
|
|
Address:
|
, Bursa, International, , TURKEY
|
|
Keywords:
|
Generalized p value ;
Log-normal distribution ;
Modified Likelihood
|
|
Abstract:
|
In many fields, data has skewed distribution. That is true especially when the interested variable takes only positive values with a small mean value but a large variance value. To overcome these problems one possible solution is to work with the log-transformed data.In this study we focus on comparing two population means for this kind of data when the populations have unequal variances. We consider 3 possible solutions: Modified Likelihood ratio test, bootstrap based test and generalized p value approach. A simulation study is conducted using small to moderate sample sizes to assess the type I error rates and powers.
|
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 2012 program
|
2012 JSM Online Program Home
For information, contact jsm@amstat.org or phone (888) 231-3473.
If you have questions about the Continuing Education program, please contact the Education Department.