Development of Hypothesis Testing On Type One Error and Power Function
A.O. Abidoye, E.T. Jolayemi, O.O.M. Sanni, B.A. Oyejola · Ilorin Journal of Science · 2015
In this study the proposed test statistic for testing hypothesis of equality of means against ordered alternatives under heterogeneous variances was proposed. We compared it with the conventional t – test using the sample pooled variance. The comparisons of the two tests were made using type 1 error and power under non – overlapping situations. The result shows that proposed test performed better with respect to type 1 error rate. Power of the proposed test was found to be consistently higher than the conventional t – test.