M316 Test 2A-v1 Spring'05

# M316 Test 2A-v1 Spring'05 - Name EID M316 Elementary...

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M316 Elementary Statistics Test 2 Form A v1 EID _________________________ Spring 2005 Instructor: Dr. Gary Berg Show all your work. All problems are worth ten points unless stated otherwise. Part I 1) A study in Sweden looked at former elite soccer players, people who played soccer but not at the elite level, and people of the same age who did not play soccer. Here is a two-way table that classifies these subjects by whether or not they had arthritis of the hip or knee by their mid-50’s: Elite Non-elite Did not play Arthritis 10 9 24 No Arthritis 61 206 548 a) Give the marginal distribution of participation in soccer, both as counts and as percents. b) Find the percent of each group who have arthritis. 2) You have recruited 300 adults aged 45 to 65 who are willing to follow your orders about alcohol consumption over the next five years. You want to compare the effects of moderate drinking of just wine, just beer, or just spirits on heart disease. Outline the design of a completely randomized experiment to do this. (Draw the diagram.)

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M316 Test 2A-v1 Spring'05 - Name EID M316 Elementary...

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