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Journal of Korean Society for Quality Management 2008;36(4): 1-. |
| 공업통계분야에서 동등성 검정 및 그 응용 |
| 백재욱 |
| 한국방송통신대학교 정보통계학과 |
| Equivalence testing and its applications in industry |
| Jai-Wook Baik |
| Department of Information Statistics, Korea National Open University |
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| ABSTRACT |
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As more and more data are collected one may ask whether the data collected within a short period of time are same. In this case traditional hypothesis testing of $H_o:{mu}_1={mu}_2$ vs $H_1:{mu}_1{
eq}{mu}_2$ is used to determine whether the data are same when there is no knowledge about equivalence testing. However, this type of hypothesis testing has the undesirable property of penalizing higher precision. So TOST is to be performed in the event of equivalence testing. In this study equivalence testing is introduced where one can find the applications in industry. Traditional two sample t testing is to be compared with the equivalent testing and the procedure to perform the equivalence testing is to be presented along with an example. Finally equivalence testing in terms of the other parameters such as variance, proportion or failure rate is to be sought. |
| Key Words:
industrial statistics;equivalence testing;hypothesis testing;TOST; |
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