In response to a study suggesting a link between lack of circumcision and cervical cancer, an investigation was conducted to assess the accuracy of reported circumcision status [263]. Before registering at a cancer institute, all patients were asked to fill out a questionnaire. For males, the data requested included circumcision status. This informa- tion was confirmed by interview. Subsequently, all patients received a complete physical examination during which the physician noted whether the man was circumcised or not. The data collected over a two-month period are presented in the following table.

At the 0.

05 level of significance, does there appear to be an association between the results of the physical examination and the patient's own response? If so, what is the relationship?

Patient Statement Examination Total Yes No Yes 37 47 84 No 19 89 108 Total 56 136 192