Data on cars is available as "Cars93.csv" in the Supplementary Materials directory under the Content tab. If however, you have installed R on your computer, it is available by first typing: > |ibrary(MASS) > Cars93 We will first examine miles per gallon in the city (M PG.city) vs engine size (EngineSize). Question 1 (1 point) The estimates for [30 and [31 for MPG.city (y) vs EngineSize (x) is: 0 37.6802 and -3.2215 respectively O 32.1122 and -3.1461 respectively 0 35.1535 and -3.5340 respectively 0 32.6267 and -3.8464 respectively 0 30.7767 and -3.0020 respectively Manufacturer Model Type Max.Pric MPG.city MPG.highway AirBags Drive Train Cylinders EngineSize Horsepower RPM Acura Integra Small 18.8 25 31 None Front 4 1.8 140 6300 Midsize 38.7 18 25 Driver & Passenger Front 6 3.2 200 5500 2 Acura Legend 3 Audi 90 Compact 32.3 20 26 Driver only Front 6 2.8 172 5500 6 2.8 172 5500 4 Audi 100 Midsize 44.6 19 26 Driver & Passenger Front BMW 5351 Midsize 36.2 22 30 Driver only Rear 4 3.5 208 5700 Midsize 17.3 22 31 Driver only Front 4 2.2 110 5200 Buick Century 19 28 Driver only Front 6 3.8 170 4800 7 Buick LeSabre Large 21.7 24.9 16 25 Driver only Rear 6 5.7 180 4000 8 Buick Roadmaster Large 26.3 19 27 Driver only Front 6 170 4800 Riviera Midsize 3.8 9 Buick 8 4.9 200 4100 10 Cadillac DeVille Large 36.3 16 25 Driver only Front 11 Cadillac Seville Midsize 42.7 16 25 Driver & Passenger Front 8 4.6 295 6000 4 2.2 110 5200 12 Chevrolet Cavalier Compact 18.3 25 36 None Front 13 Chevrolet Corsica Compact 11.4 25 34 Driver only Front 4 2.2 110 5200 160 16.8 19 28 Driver & Passenger Rear 6 3.4 4600 14 Chevrolet Camaro Sporty 110 5200 15 Chevrolet Lumina Midsize 18.4 21 29 None Front 4 2.2 170 4800 16 Chevrolet Lumina_APV Van 18 18 23 None Front 6 3.8 17 Chevrolet Astro Van 18.6 15 20 None 4WD 6 4.3 165 4000 18 Chevrolet Caprice Large 19.6 17 26 Driver only Rear 5 170 4200 17 25 Driver only Rear 8 5.7 300 5000 19 Chevrolet Corvette Sporty 41.5 20 Chrylser Concorde Large 18.4 20 28 Driver & Passenger Front 6 3.3 153 5300 23 28 Driver & Passenger Front 4 3 141 5000 21 Chrysler LeBaron Compact 17.1 6 3.3 147 4800 22 Chrysler Imperial Large 29.5 20 26 Driver only Front 92 23 Dodge Colt Small 10.6 29 33 None Front 4 1.5 6000 93 A 4800 24 Dodge Shadow Small 14.2 23 29 Driver only Front 2.2 27 Driver only 4 Compac 14.7 22 Front 2.5 100 4800 25 Dodge Spirit 26 Dodge Caravan Van 24.4 17 21 Driver only 4WD 6 3 142 5000 16.4 21 27 Driver only Front 4 2.5 100 4800 27 Dodge Dynasty Midsize9.2 29 92 6000 23 Dodge Colt Small 7.9 10.6 33 None Front 4 1.5 4 2.2 93 4800 24 Dodge Shadow Small 8.4 11.3 14.2 23 29 Driver only Front 25 Dodge Spirit Compact 11.9 13.3 14.7 22 27 Driver only Front 4 2.5 100 4800 6 26 Dodge Caravan Van 13.6 19 24.4 17 21 Driver only 4WD 3 142 5000 27 Dodge Dynasty Midsize 14.8 15.6 16.4 21 27 Driver only Front 4 2.5 100 4800 6 3 300 6000 28 Dodge Stealth Sporty 18.5 25.8 33.1 18 24 Driver only 4WD 92 6000 29 Eagle Summit Small 7.9 12.2 16.5 29 33 None Front 4 1.5 6 3.5 214 5800 30 Eagle Vision Large 17.5 19.3 21.2 20 28 Driver & Passenger Front Front 4 1.3 63 5000 31 Ford Festiva Small 6.9 7.4 7.9 31 33 None 4 1.8 127 6500 32 Ford Escort Small 8.4 10.1 11.9 23 30 None Front 27 None Front 4 2.3 96 4200 33 Ford Tempo Compact 10.4 11.3 12.2 22 15.9 21 22 29 Driver only Rear 2.3 105 4600 34 Ford Mustang Sporty 10.8 12.8 14 15.2 24 30 Driver only Front 4 2 115 5500 35 Ford Probe Sporty 4800 36 Ford Aerostar Van 14.5 19.9 25.3 15 20 Driver only 4WD 6 CO 140 4800 37 Ford Taurus Midsize 15.6 20.2 24.8 21 30 Driver only Front 6 38 Ford Crown_Victoria Large 20.1 20.9 21.7 18 26 Driver only Rear 8 4.6 190 4200 55 5700 39 Geo Metro Smal 6.7 8.4 10 46 50 None Front 3 90 5400 40 Geo Storm Sporty 11.5 12.5 13.5 30 36 Driver only Front 4 1.6 160 5800 41 Honda Prelude Sporty 17 19.8 22.7 24 31 Driver & Passenger Front 4 2.3 Small 8.4 12.1 15.8 42 46 Driver only Front 4 1.5 102 42 Honda Civic 21.2 24 31 Driver & Passenger Front 4 2.2 140 5600 43 Honda Accord Compact 13.8 17.5 Excel Small 8'9 8 9.2 29 33 None Front 4 1.5 81 5500 44 Hyundai Elantra Small 9 10 11 22 29 None Front 4 1.8 124 6000 45 Hyundai 46 Hyundai Scoupe Sporty 9.1 10 11 26 34 None Front 4 1.5 92 5550 Sonata Midsize 12.4 13.9 15.3 20 27 None Front 4 2 128 6000 47 Hyundai 47.9 50.4 17 22 Driver only Rear 8 4.5 278 6000 48 Infiniti Q45 Midsize 45.4 6 49 Lexus ES300 Midsize 27.5 28 28.4 18 24 Driver only Front 3 185 52006 50 Lexus SC300 Midsize 34.7 35.2 35.6 18 23 Driver & Passenger Rear 3 225 6000 3.8 160 4400 51 Lincoln Continental Midsize 33.3 34.3 35.3 17 26 Driver & Passenger Front 8 4.6 210 4600 52 Lincoln Town_Car Large 34.4 36.1 37.8 18 26 Driver & Passenger Rear 9.1 29 37 None Front 4 1.6 82 5000 53 Mazda 323 Small 7.4 8.3 11.6 12.3 28 36 None Front 4 1.8 103 5500 54 Mazda Protege Small 10.9 626 Compact 14.3 16.5 18.7 26 34 Driver only Front 4 2.5 164 5600 55 Mazda 6 3 155 5000 56 Mazda MPV Van 16.6 19.1 21.7 18 24 None 4WD 255 6500 57 Mazda RX-7 Sporty 32.5 32.5 32.5 17 25 Driver only Rear rotary 1.3 Rear 4 2.3 130 5100 58 Mercedes-Benz 190E Compact 29 31.9 34.9 20 29 Driver only 6 3.2 217 5500 59 Mercedes-Benz 300E Midsize 43.8 61.9 80 19 25 Driver & Passenger Rear 26 Driver only A 15 23 Front 1.6 100 5750 60 Mercury Capri Sporty 13.3 14.1 6 140 3800 61 Mercury Cougar Midsize 14.9 14.9 14.9 19 26 None Rear 3.8 29 33 None Front 4 1.5 92 6000 62 Mitsubishi Mirage Small 7.7 10.3 12.9 6 3 202 6000 63 Mitsubishi Diamante Midsize 22.4 26.1 29.9 18 24 Driver only Front Sentra Small 8.7 11.8 14.9 29 33 Driver only Front 4 1.6 110 6000 64 Nissan 15.7 18.3 24 30 Driver only Front 4 2.4 150 5600 65 Nissan Altima Compact 13 3 151 4800 66 Nissan Quest Van 16.7 19.1 21.5 17 23 None Front Front 3 160 5200 67 Nissan Maxima Midsize 21 21.5 22 21 26 Driver only 155 6000 68 Oldsmobile Achieva Compact 13 13.5 14 24 31 None Front 4 2.3 Front 4 2.2 110 5200 69 Oldsmobile Cutlass_Ciera Midsize 14.2 16.3 18.4 23 31 Driver only 6 3.8 170 4800 70 Oldsmobile Silhouette Van 19.5 19.5 19.5 18 23 None Front Front 3.8 170 4800 71 Oldsmobile Eighty-Eight Large 19.5 20.7 21.9 19 28 Driver only 72 Plymouth Laser Sporty 11.4 14.4 17.4 23 30 None 4WD 4 1.8 92 5000 Front 4 1.6 74 5600 73 Pontiac LeMans Small 3.2 9 9.9 31 41 None 12.8 23 31 None Front 4 2 110 5200 74 Pontiac Sunbird Compact 9.4 11.1 6 3.4 160 4600 75 Pontiac Firebird Sporty 14 17.7 21.4 19 28 Driver & Passenger Rear 18.5 21.6 19 27 None Front 6 3.4 200 5000 76 Pontiac Grand Prix Midsize 15.4 170 4800 19.4 24.4 28 Driver & Passenger Front 6 3.8 77 Pontiac Bonneville Large 29.4 19