Question: Refer to Problems 34 and 35. a. In each case, consult the appropriate graphs to decide whether using the Wilcoxon signed-rank test is reasonable for

Refer to Problems 34 and 35.

a. In each case, consult the appropriate graphs to decide whether using the Wilcoxon signed-rank test is reasonable for performing a hypothesis test for the mean of the population from which the data were obtained. Give reasons for your answers.

b. For each case where using either the z-test or the t-test is reasonable and where using the Wilcoxon signed-rank test is also appropriate, decide which test is preferable. Give reasons for your answers.

* Nursing-Home Costs.

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