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http://dx.doi.org/10.5351/KJAS.2017.30.2.301

A minimum combination t-test method for testing differences in population means based on a group of samples of size one  

Heo, Miyoung (Department of Applied statistics, Chung-Ang University)
Lim, Changwon (Department of Applied statistics, Chung-Ang University)
Publication Information
The Korean Journal of Applied Statistics / v.30, no.2, 2017 , pp. 301-309 More about this Journal
Abstract
It is often possible to test for differences in population means when two or more samples are extracted from each N population. However, it is not possible to test for the mean difference if one sample is extracted from each population since a sample mean does not exist. But, by dividing a group of samples extracted one by one into two groups and generating a sample mean, we can identify a heterogeneity that may exist within the group by comparing the differences of the groups' mean. Therefore, we propose a minimum combination t-test method that can test the mean difference by the number of combinations that can be divided into two groups. In this paper, we proposed a method to test differences between means to check heterogeneity in a group of extracted samples. We verified the performance of the method by simulation study and obtained the results through real data analysis.
Keywords
heterogeneity; minimum combination t-test method; comparison of means; hypothesis testing;
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