Abstract
In an examination of the federal hazardous waste regulations, an analysis of the importance of Type II statistical errors is undertaken. A method for approximating the power of the test is developed, and the EPA policy is examined under selected situations. Additionally a Monte Carlo simulation is provided which compares the efficacy of the EPA required t-test with the Wilcoxon rank sum test. The paper offers a number of conclusions about the appropriateness of the EPA test under selected circumstances. It also concludes that by specifying a sampling scheme without benefit of direct discussion of Type II errors, policy decisions may lie hidden within the statistical test.
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