A paired difference experiment produced the following results
nd = 38
- a. Determine the values of z for which the null hypothesis. μ1 – μ2 = 0, would be rejected in favor of the alternative hypothesis, μ1 – μ2 < 0. Use α = .10.
- b. Conduct the paired difference test described in part a. Draw the appropriate conclusions.
- c. What assumptions are necessary so that the paired difference test will be valid? d Find a 90% confidence interval for the
mean difference μd. - d. Which of the two inferential procedures, the confidence interval of part d or the test of hypothesis of part b. provides more information about the differences between the population means?
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