Mathematics, 25.12.2019 03:31 eagles2286
Some scientists believe alcoholism is linked to social isolation. one measure of social isolation is marital status. a study of 280 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
married 21 37 58
not married 59 63 42
is there significant evidence of an association? run the appropriate test at the 5% level of significance.
1. write out the appropriate null hypothesis and the alternative hypothesis.
2. what is the appropriate test statistic that needs to be calculated?
3. calculate and report the appropriate test statistic. to get full credit, you must show your work.
4. decide to either fail to reject the null hypothesis or reject the null hypothesis, and describe the result and the statistical conclusion in an understandable way.
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