Development of Hypothesis Testing On Type One Error and Power Function

2015 Ilorin Journal of Science  
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 ttest using the sample pooled variance. The comparisons of the two tests were made using type 1 error and power under nonoverlapping 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 ttest.
doi:10.54908/iljs.2015.02.01.006 fatcat:erov7rbjejdstiauqwrlkz4xxq