A researcher believes she has found a gene that is associated with having panic attacks. Ten...

A researcher believes she has found a gene that is associated with having panic attacks. Ten out of her 15 panic patients have the gene, whereas only 5 out of 25 control subjects have the gene. What is the value of the chi-square statistic she should use to test the association between the suspected gene and the tendency to have panic attacks?

		4.36
		5.23
		6.83
		8.71

Expert Solution

The answer is:

Calculations:

The following cross-tabulation have been provided. The row and column total have been calculated and they are shown below:

	Treatment	Control	Total
Gene Present	10	5	15
Gene Absent	5	20	25
Total	15	25	40

Test Statistics

The Chi-Squared statistic is computed as follows:

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orchestra answered 1 year ago

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