Part 2 Some scientists believe alcoholism is linked to social isolation. One measure of social isolation...

Part 2 Some scientists believe alcoholism is linked to social isolation. One measure of social isolation is marital status. A study of 300 adults is conducted, and each participant is classified as not alcoholic, diagnosed alcoholic, or undiagnosed alcoholic, and also by marital status. Diagnosed Alcoholic Undiagnosed Alcoholic Not Alcoholic Total Married 23 34 85 142 Not Married 37 50 71 158 Total 60 84 156 300 Are marital status and alcoholism independent? Run the appropriate test at the 5% level of significance. 1. Write out the appropriate null hypothesis and the alternative hypothesis. (1 point) 2. What is the appropriate test statistic that needs to be calculated? (1 point) 3. What is the decision rule? (1 point) 4. Calculate and report the appropriate test statistic. To get full credit you need to show your work. (5 points) 5. Describe the result and the statistical conclusion in an understandable way. (2 points)

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