Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally distributed. ​Test whether μ1>μ2 at the α=0.10 level of significance for the given sample data.   a. Find the test statistic  b. Determine the p value c. The 99​% confidence interval about μ1−μ2 is the range from a lower bound of ? to an upper bound of ?

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