Question

Refer to Exercise 6.15.
In exercise
a. Test for a difference in the means in the two populations using an α = .05 t-test.
b. Place a 95% confidence interval on the difference in the means of the two populations.
c. Compare the inferences obtained from the results from the Wilcoxon rank sum test and the t-test.
d. Which inferences appear to be more valid, inferences on the means or the medians?


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  • CreatedNovember 21, 2015
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