The Station.xlsx fi le contains data for each family including the family size (large or small), income (high or low), and whether the family bought a station wagon. Use this fi le to perform the following exercises:
a. Does it appear that family size or income is a more important determinant of station wagon purchases?
b. Compute the percentage of station wagon purchasers that are high or low income.
c. Compute the fraction of station wagon purchasers that come from each of the following four categories: High Income Large Family, High Income Small Family, Low Income Large Family, and Low Income Small Family.