A study was recently conducted by the Bonneville Power Association (BPA) to determine attitudes regarding the associations
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A study was recently conducted by the Bonneville Power Association (BPA) to determine attitudes regarding the association’s policies in western U.S. states. One part of the study asked respondents to rate the performance of the BPA on its responsiveness to environmental issues. The following responses were obtained for a sample of 12 urban residents and 10 rural residents. The ratings are on a 1 to 100 scale, with 100 being perfect.
b. Perform the appropriate parametric statistical test and indicate the assumptions necessary to use this test that were not required by the Mann–Whitney tests. Use a significance level of 0.02. (Refer to Chapter 10 if needed.)
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Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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