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[Solution Library] When the chi-square test value is significant and there is a relationship between the variables, the strength of this relationship can

Question: When the chi-square test value is significant and there is a relationship between the variables, the strength of this relationship can be measured by using the contingency coefficient. The formula for the contingency coefficient is

\[C=\sqrt{\frac{\chi^{2}}{\chi^{2}+n}}\]

where \(\chi^{2}\) is the test value and \(n\) is the sum of frequencies of the cells. The contingency coefficient will always be less than $1 .$ Compute the contingency coefficient for Exercises 8 and 20 .

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