Inference on mean sub-vectors of two multivariate normal populations with unequal covariance matrices

Jinadasa Gamage and Thomas Mathew

Statistics & Probability Letters, 2008, vol. 78, issue 4, 420-425

Abstract: The problem of testing the equality of sub-vectors of two multivariate normal mean vectors is addressed when the complementary sub-vectors are known to be equal, and the two populations have unequal covariance matrices. A test procedure is derived using the multivariate Satterthwaite approximation. The approximation is developed in such a way that the test satisfies a natural invariance condition. Accuracy of the approximation is numerically investigated, and the result is illustrated with an example.

Keywords: Invariance; Likelihood; ratio; test; Multivariate; Satterthwaite; approximation (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (1)

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