Use the given statistics to complete parts (a) and (b). Assume that the populations are normally distributed. (a) Test whether u, >H, at the a = 0.10 level of significance for the given sample data. (b) Construct a 95% confidence interval about u - 2. Population 1 21 Population 2 20 46.5 44.8 3.9 13.2 (a) Identify the null and alternative hypotheses for this test. O A. Ho: H1 = H2 H,: H H2 O B. Ho: H1 = P2 OC. Ho: H1 2

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