A degrees-of-freedom approximation for a t-statistic with heterogeneous variance
| Year of publication: |
1999
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|---|---|
| Authors: | Lipsitz, S.R. ; Ibrahim, J.B. ; Parzen, M. |
| Published in: |
The statistician : journal of the Institute of Statisticians. - Oxford [u.a.] : Blackwell, ISSN 0039-0526, ZDB-ID 280816x. - Vol. 48.1999, 4, p. 495-506
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