Testing Restricted Mean Vector Under Alternatives Hypothesis
Keywords:
distance2013;based test, weighted mixture distribution, simulation, one-sided and partially one-sided hotelling2019;s-T 2, power
Abstract
In most of the statistical models the sign of the parameters are known is advance In order to test the validity of the model estimation and testing parameters to be done at the initial stage In this case usual unrestricted estimation and testing procedures may result in incorrect solutions Usually two-sided F or 2 testing are not suitable as well as unconstraint optimization solutions can give wrong estimate In multivariate analysis we usually apply twosided Hotelling s -T 2 for testing mean vector This test may not be appropriate for testing when an order restriction is imposed among several p-variate normal mean vector The main objective of this paper is for a given a multivariate normal population with unknown covariance matrix to develop a new testing procedure when the mean vector slipped to the right or to the left or both So we proposed a new distance based one sided and partially one sided Hotelling s -T 2 to test restricted mean vectors Monte Carlo simulations are conducted to compare power properties of the proposed DT 2 along with their respective conventional counterparts It is found that our proposed DT 2 test shows substantially improved power than the usual two-sided test in all situations
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Published
2017-01-15
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