Calculate the marginals for the rows and columns, Basic Statistics

(1) Public health scholars have noted a relationship between nancial well-being follow-ing catastrophe and rates of depression. Weber, Kenny, and Bratton (2010) examine this relationship in the context of the BP oil spill. During the spill, they interviewed n = 1; 156 residents along the Louisiana coast. The survey included two questions, \Have you been nanciallyaected by the oil spill?" which is coded 1=Yes, 0=No; they also included a question on depression: \How often have you felt depressed?" which is coded 1=often, 0=never/rarely. Below is the cross-tab displaying the relationship between these variables.

            Table 1:  Question 4 Data


Financially A  ectedNo

Financially A  ectedYes







(a) Calculate the marginals for the rows and columns.

(b) Calculate the odds of being depressed if one is nanciallya  ected.

(c) Test the hypothesis ( = 0:05) that depression and being nancially a ected are un-related.

(d) Calculate the relationship between the variables using Yule's Q.

(e) Calculate the odds of being a depressed if one is not   nanciallya  ected.

(f)  Find and interpret the odds ratio.

Posted Date: 3/29/2013 5:22:53 AM | Location : United States

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