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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국자료분석학회 Journal of The Korean Data Analysis Society Journal of The Korean Data Analysis Society 제17권 제6호
- 발행연도
- 2015.1
- 수록면
- 2,867 - 2,873 (7page)
이용수
초록· 키워드
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The t-test, Mann-Whitney test and median test are three tests that can be employed to test for the difference in location parameters. We compared powers of the three tests under a variety of population distributions (contaminated normal distribution, mixed normal distribution) through a simulation study. Each test was performed 10,000 times under the same conditions. In every case, equal sizes of 10, 15, 20 and 25 were used. The powers of the tests were estimated, based on the number of times the null hypothesis was rejected as divided by 10,000. The results of the simulation study indicated that the Mann-Whitney test was powerful when the underlying distributions were mixed normal distribution and contaminated normal distribution about sample size of 10, 15, 20 and 25. In this case, mixed normal distributions considered were 75% N(0,1) and 25% N(3,36) Also, contaminated normal distributions considered were 20% N(0,1) and 80% N(0,2).
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참고문헌 (18)
참고문헌 신청
Blair, R. C. / 1980 / The power of t and Wilcoxon statistics / Evaluation Review 4 (5) : 645 ~ 656
Bohn, L. L. / 1992 / Nonparametric two-sample procedures for ranked-set samples data / Journal of the American Statistical Association 87 (418) : 552 ~ 561
Bohn, L. L. / 1994 / The effect of imperfect judgement rankings on properties of procedures based on the ranked-set samples analog of Mann-Whitney-Wilcoxon statistic / Journa
Conover, W. J. / 1980 / Practical Non-parametric Statistics / John Wiley & Sons Publishing Company
Gibbons, J. D. / 1971 / Non-parametric Statistical Inference / McGraw-Hill Book Company
Bohn, L. L. / 1992 / Nonparametric two-sample procedures for ranked-set samples data / Journal of the American Statistical Association 87 (418) : 552 ~ 561
Bohn, L. L. / 1994 / The effect of imperfect judgement rankings on properties of procedures based on the ranked-set samples analog of Mann-Whitney-Wilcoxon statistic / Journa
Conover, W. J. / 1980 / Practical Non-parametric Statistics / John Wiley & Sons Publishing Company
Gibbons, J. D. / 1971 / Non-parametric Statistical Inference / McGraw-Hill Book Company
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