A car rental company owns 100 Chevrolet Cruzes, 50 Toyota Yarises and 50 Ford Focuses. They plan to buy another 50 cars, and owing to new government regulations need to ensure that the average fuel efficiency of their fleet is at least 30 mpg. Using the data in Table 17.6.

Table 17.6:

determine the model they should buy. They require all the new purchases to be the same model.

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No. AWN1 2 3 4 5678 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Model Honda Fit Mazda 3 Chevrolet Cruze Honda Civic Kia Soul Ford Focus Kia Forte Kia Rio Subaru Impreza Chevrolet Sonic Ford Fiesta Hyundai Accent Hyundai Elantra Toyota Corolla Toyota Prius Volkswagen Jetta Volkswagen Jetta hybrid Dodge Dart Mazda 2 Fiat 500 Honda Civic hybrid Scion XB Honda CR-Z Nissan Cube Scion xD Volkswagen Beetle Hyundai Veloster Nissan Sentra Scion tC Toyota Yaris Scion iQ Mitsubishi Lancer Nissan Versa Price ($) 19,257 21,893 21,631 21,607 17,700 20,696 19,576 15,995 20,322 18,638 18,600 16,469 20,348 19,050 21,059.5 21,924 28,727.5 20,623 16,159 21,928 25,308 17,948.5 22,051.5 18,651.5 17,116.5 26,564 21,081.5 18,540 20,495.5 16,586.5 17,670.5 27,591 15,652.5 Fuel economy (mp 37 35 28.5 32 27 31 31 32 29.5 30.5 32.5 32.5 32 31.5 49.5 29 45 30.5 32 35.5 45.5 25 34.5 27.5 30 28.5 32 31.5 27 33.5 36.5 30 31.5