Shun-Yi Chen Tamkang University, Taiwan),

Hubert J. Chen (University of Georgia, USA)

A Single-Stage Procedure for Testing Homogeneity of Means Against Ordered Alternatives Under Unequal Variances

In this paper we apply a single-stage procedure described by Chen and Chen (1998) to test the equality of normal means against ordered alternatives, , in one-way layout when variances are unknown and unequal. Tables of percentage points and the power under a specific alternative needed for implementation are given. Relation between the single-stage and the two-stage test procedures is discussed.

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