A researcher is interested in a possible association between having a carpeted bedroom and asthma. Accordingly, she identifies 200 families, each with two children where just one of the children has asthma. She records the information that in 130 families both children's bedrooms are carpeted and in 40 cases neither children's bedroom is carpeted. In the remaining cases only one child's bedroom is carpeted and in 8 of these it is the nonasthmatic child's bedroom that is carpeted. Perform the most appropriate test on these data. Do you believe there is an association between asthma and carpet in the bedroom? Perform a Fisher's exact test (or chi-square test of association) on these data. Why are the results different? P-963