Rev test IV 3123

# Rev test IV 3123 - Review for Test 4 STA 3123 I The annual...

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Review for Test 4 STA – 3123 I. The annual percentage turnover rates for five U.S. and five Japanese plants are shown in the table. U.S. Plants Japanese Plants 7.11% 3.52% 6.06% 2.02% 8.00% 4.91% 6.87% 3.22% 4.77% 1.92% What nonparametric comparison is appropriate for the data? a. Wilcoxon Rank Sum Test b. Wilcoxon Signed Rank Test c. The Kruskal-Wallis H Test d. Friedman F r -Test Which parametric procedure could be used to analyze this data (assuming all the necessary assumptions were met)? a. Independent samples comparison of μ 1 and μ 2 . b. Matched Pairs comparison of μ 1 and μ 2 . c. Randomized Block Analysis of Variance design. d. All three parametric procedures could be used. Calculate the test statistic for determining if the U.S. Plants have a population distribution of turnover rates that is shifted to the right of the Japanese Plants. a. T = 16 b. T = 39 c. T = 23 d. T = 16 or 39 can be used. Find the rejection region when testing a two-tailed Wilcoxon rank sum test using α = .05. a. T 19 or T 41 b. T 18 or T 37 c. T 12 or T 28 d. 18 T 37 Do the data provide sufficient evidence to indicate that the population distributions of turnover rates differ for the U.S. and Japanese Plants? Use α = .05. II. In 1982 there were 612,593 lawyers in USA. About 70% of these lawyers were in private practice; about 15% worked in government; and about 9% worked for businesses. Because of mushrooming government regulation, the number of

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corporate lawyers has been growing at a rapid pace. The data are the average salaries for lawyers with 8 years experience for 10 U.S. cities. City Corporate Lawyers Lawyers with Law Firms Atlanta \$45,500 \$45,500 Chicago 43,000 48,000 Cincinnati 43,500 45,000 Dallas/Ft. Worth 49,500 46,500 Los Angeles 47,000 60,000 Milwaukee 37,500 50,000 Minneapolis/St. Paul 47,500 43,500 New York 43,500 54,000 Pittsburgh 42,000 44,000 San Francisco 47,500 59,500 What nonparametric procedure you will use to compare the salaries? a. Wilcoxon Rank Sum Test b. Wilcoxon Signed Rank Test (WSR Test) c. Kruskal-Wallis H Test d. The Friedman F r -Test Calculate the WSR Test statistic for a two-tailed test. a.
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Rev test IV 3123 - Review for Test 4 STA 3123 I The annual...

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