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hypo.test

# hypo.test - Statistics 13A Spring 2010 Some Sample...

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Statistics 13A, Spring 2010, Some Sample Questions for Lectures 23-25 1. In a criminal justice system a Type I error is committed when the judge : (a) declares a guilty defendant as innocent (b) declares an innocent defendant as guilty (c) declares an innocent defendant as innocent (d) declares a guilty defendant as guilty 2. If we do not reject the null hypothesis, we conclude that (choose the most appropriate one) (a) there is not enough statistical evidence to infer that the alternative hypothesis is true (b) there is enough statistical evidence to infer that the alternative hypothesis is true (c) there is enough statistical evidence to infer that the null hypothesis is true (d) the null hypothesis is true 3. In testing the hypothesis H 0 : μ = 75 vs. H a : μ 6 = 75, the following information is known : n = 64, x = 78, and s = 10. The test statistic is equal to

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hypo.test - Statistics 13A Spring 2010 Some Sample...

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