Questions 4 and 5 refer to data that come from a study designed to investigate drinking problems among college students. In 1983 a group of students were asked if they ever drove while intoxicated. In 1987, after the legal age of drinking was raised, a different group of students were asked the same question. The results were as follows: Year Drove While 1983 1987 Total Intoxicated Yes 1250 991 2241 No 1387 1666 3053 Total 2637 2657 5294 What is the sample odds ratio for answering "no" compared to "yes" in 1983 versus answering "no" compared to "yes" in 1987