Staff decided to perform a case control study to determine the
risk associated with eating at cafeteria. In addition to the 24
individuals who had eaten in the cafeteria and who presented ill in
the college’s infirmary, staff identified an additional 6
individuals who were also seen in the infirmary with similar
symptoms but who had not eaten in the cafeteria. Staff began
interviewing additional students that were the same gender, and
within + 5 years of the age of the cases. Staff identified 76
individuals who were not sick and who also had eaten in the
cafeteria on the day in question and 94 students who also were not
ill and who had not eaten in the cafeteria on the day in question.
Calculate the odds ratio; that is the risk of becoming ill from
eating in the cafeteria.