|
|||||
|
|
Tests of homogeneity of intercepts after a preliminary test |
|
| Authors: | Annick Lambert A.K.Md. Ehsanes Saleh Pranab Kumar Sen |
| Affiliation: | 1. Faculty of Administration , University of Ottawa , Ottawa, Canada;2. Dept. of Mathematics &3. Statistics , Carleton University , Ottawa, K1S 5B6, Canada;4. Department of Biostatistics , University of North Carolina , Chapel Hill, NC, 27514, U.S.A |
| Abstract: | For the multl-sample regression model , the problem of testing equality of intercepts following a preliminarytest on the equality o f slopes is considered. The t e s t s are based on the conventional least squares estimators (without necessarily assuming the normality of the underlying error distributions ) , and the impact of a preliminary test on the asymptotic size and power of the final test is studied. |
| Keywords: | Asymptotic power asymptotic size intercepts least squares estimators parallelism preliminary test slopes |