For 49 U.S. cities, the fi le Incomediscriminant.xlsx contains the following data:
■ Income level: low, medium, or high
■ Percentage of blacks, Hispanics, and Asians a. Use this data to build a linear classification rule for classifying a city as low, medium, or high income. b. Determine the classification matrix. c. Compare the performance of your classification rule to the proportional classification rule.