International Journal of Management and Applied Science (IJMAS)
.
Follow Us On :
current issues
Volume-7,Issue-11  ( Nov, 2021 )
Past issues
  1. Volume-7,Issue-11  ( Nov, 2021 )
  2. Volume-7,Issue-10  ( Oct, 2021 )
  3. Volume-7,Issue-9  ( Sep, 2021 )
  4. Volume-7,Issue-8  ( Aug, 2021 )
  5. Volume-7,Issue-7  ( Jul, 2021 )
  6. Volume-7,Issue-6  ( Jun, 2021 )
  7. Volume-7,Issue-5  ( May, 2021 )
  8. Volume-7,Issue-4  ( Apr, 2021 )
  9. Volume-7, Issue-3  ( Mar, 2021 )
  10. Volume-7, Issue-2  ( Feb, 2021 )

Statistics report
Jan. 2022
Submitted Papers : 80
Accepted Papers : 10
Rejected Papers : 70
Acc. Perc : 12%
Issue Published : 93
Paper Published : 4666
No. of Authors : 9634
  Journal Paper


Paper Title :
Performance of Tests for Homogeneity of Variances for More than Two Samples

Author :Knavoot Jiamwattanapong, Nisanad Ingadapa

Article Citation :Knavoot Jiamwattanapong ,Nisanad Ingadapa , (2020 ) " Performance of Tests for Homogeneity of Variances for More than Two Samples " , International Journal of Management and Applied Science (IJMAS) , pp. 57-62, Volume-6,Issue-2

Abstract : To test for homogeneity of variances plays a critical role in not only conducting the analysis of variance (ANOVA) but also monitoring the process in quality control. The performance of five tests including Cochran‟s test, Z-variance test, O‟Brien test, Levene‟s test, and Modified Levene‟s Test was evaluated via a simulation study. Comparisons were made under the null hypothesis and the alternative with various difference levels of variances. Overall, Cochran‟s test and Z-variance test perform better than the other three tests and the two tests can be used in small sample sizes even five. Guidelines for selecting tests for homogeneity of variances and alternative methods to compare treatment means in ANOVA when the homogeneity of variances is violated are provided. Keywords - Analysis Of Variance, Equality Of Variances, Heteroscedasticity, Test For Homogeneity Of Variances.

Type : Research paper

Published : Volume-6,Issue-2


DOIONLINE NO - IJMAS-IRAJ-DOIONLINE-17131   View Here

Copyright: © Institute of Research and Journals

| PDF |
Viewed - 33
| Published on 2020-07-08
   
   
IRAJ Other Journals
IJMAS updates
IJMAS -THANK YOU ALL FOR CONTRIBUTING YOUR PAPER TO IJMAS APRIL ISSUE. ALL AUTHORS ARE REQUESTED TO GET THEIR HARD COPY NOW.
The Conference World
Facebook

JOURNAL SUPPORTED BY