13. Let x, . . . . . X.25 be i.id. N(3, l ). Consider testing the null hypothesis Ho: μ 0 versus μ > 0 at significance level α-.05. Compare the power of the sign test and the power of the test based...

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Extracted text: 13. Let x, . . . . . X.25 be i.id. N(3, l ). Consider testing the null hypothesis Ho: μ 0 versus μ > 0 at significance level α-.05. Compare the power of the sign test and the power of the test based on normal theory assuming that σ is known.