A game commissioner wishes to see if the number of hunting accidents in counties in western Pennsylvania is different from the number of hunting accidents in counties in eastern Pennsylvania. A sample of counties from the two regions is selected, and the numbers of hunting accidents are shown. At α = 0.05, is there a difference in the number of accidents in the two areas? If so, give a possible reason for the difference.
Use the Wilcoxon rank sum test. Assume that the samples are independent. Also perform each of these steps.
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.

  • CreatedSeptember 02, 2015
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