Case 3: Recently, an association thatrepresented police in New Jersey complained that the incidence ofcancer was unusually high among police officers who used radar gunsin tracking the speed of drivers. The association brought suitagainst the state, claiming that those officers who used theseradar guns had an incidence of cancer 18 percent higher than acomparable group of government workers from the state park servicewho were randomly selected for comparison purposes. The comparisonsample and the police officers were matched on educational level,age, gender, and years of service. The sample was large: 283 policeofficers and 231 park workers.
Was the case justified? Why or why not? (Be sure to support youranswer with reference to the strengths and weaknesses of thedesign, and consider possible confounds.)
What kind of study is this? What are the problems associatedwith this kind of study?
How would you improve the study?
