15.32 A survey of 189 statistics students asked the age of car usually driven and the student's political orientation. The car age was a numerical variable, which was converted into ordinal categories. Research question: At a = .10, are students' political views independent of the age of car they usually drive? Age of Car Usually Driven Politics Politics Under 3 3-6 7 or More Q Liberal 19 12 13 44 Middle-of-Road 33 31 28 92 Conservative 16 24 13 53 Col Total 68 67 54 189