Chapter 12, Problem AP4.19CPT

To determine

To find out from the chi-square test performed in this study, what you may conclude.

Answer to Problem AP4.19CPT

Option (a) is the correct option.

Explanation of Solution

In the question, a study was conducted to find out could the mud wrestling be the cause of a rash contracted by University of Washington students. Thus, from the options we can say that,

Option (a): This can be concluded, because the null hypothesis of the chi-square test states that there is no association, while the alternative hypothesis states that there is an association.

Option (b): This cannot be concluded, because a chi-square test only indicates association and no causation.

Option (c): This cannot be concluded, because there is always evidence in a sample.

Option (d): This cannot be concluded, because we have no information based on the frequency of participating in mud wrestling.

Option (e): This cannot be concluded, because the chi-square test only indicates an association or no association, it does not tell us anything about independence.

Thus, option (a) is the correct option.