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(4) Create a scatter plot for X = Weight and Y = CityMPG. What does it suggest? Fit a simple regression on the scatter plot.
(4) Create a scatter plot for X = Weight and Y = CityMPG. What does it suggest? Fit a simple regression on the scatter plot. Interpret the slope and fit.
Automobile Specifications (n = 71, m = 27) | Note: See variable definitions below | ||||||||||||||||||||||||||
Body Style (omit one) | Drive Type (omit one) | Transmission Type (omit one) | |||||||||||||||||||||||||
Obs | Model | Doors | Style | Engine | Cylinders | CityMPG | HwyMPG | EngineSize | HP | Length | Width | Height | Weight | Drive | Transmission | TransType | NumGears | Coupe? | Hatchback? | Sedan? | SUV? | FWD? | RWD? | AWD? | Automatic? | Manual? | CVT? |
1 | Acura TL | 4 | Sedan | V6 | 6 | 20 | 29 | 3500 | 220 | 194.0 | 74.0 | 57.2 | 3968 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
2 | Audi A5 | 2 | Coupe | L4 | 4 | 22 | 32 | 1984 | 220 | 182.1 | 73.0 | 54.0 | 3583 | A | M-6 | M | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
3 | BMW 4 Series 428i | 2 | Coupe | L4 | 4 | 22 | 35 | 1997 | 240 | 182.6 | 71.9 | 54.2 | 3470 | R | A-8 | A | 8 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
4 | BMW X1 sDrive28i | 4 | SUV | L4 | 4 | 23 | 34 | 1997 | 240 | 176.5 | 70.8 | 60.8 | 3527 | R | A-8 | A | 8 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
5 | Buice LaCrosse | 4 | Sedan | V6 | 6 | 18 | 28 | 3600 | 304 | 196.9 | 73.1 | 59.2 | 3990 | A | A-6 | A | 6 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
6 | Buick Enclave | 4 | SUV | V6 | 6 | 17 | 24 | 3600 | 288 | 201.9 | 79.0 | 70.3 | 4724 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
7 | Buick Regal | 4 | Sedan | L4 | 4 | 21 | 30 | 2000 | 259 | 190.2 | 73.1 | 58.4 | 3692 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
8 | Cadillac ATS | 4 | Sedan | L4 | 4 | 22 | 33 | 2500 | 202 | 182.8 | 71.1 | 55.9 | 3315 | R | A-6 | A | 6 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
9 | Cadillac CTS | 4 | Sedan | L4 | 4 | 20 | 30 | 2000 | 272 | 195.5 | 72.2 | 57.2 | 3616 | R | A-6 | A | 6 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
10 | Cadillac Escalade | 4 | SUV | V8 | 8 | 14 | 18 | 6200 | 403 | 202.5 | 79.0 | 75.9 | 5527 | R | A-6 | A | 6 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
11 | Chevrolet Camaro 1SS | 2 | Coupe | V8 | 8 | 16 | 24 | 3600 | 426 | 190.6 | 75.5 | 54.2 | 3719 | R | M-6 | M | 6 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
12 | Chevrolet Cruze LS | 4 | Sedan | L4 | 4 | 26 | 38 | 1400 | 138 | 181.0 | 70.7 | 58.1 | 3097 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
13 | Chevrolet Impala LTZ | 4 | Sedan | V6 | 6 | 19 | 29 | 3600 | 305 | 201.3 | 73.0 | 58.9 | 3800 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
14 | Chevrolet Malibu 2LT | 4 | Sedan | L4 | 4 | 25 | 36 | 2500 | 196 | 191.5 | 73.0 | 57.6 | 3532 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
15 | Chevrolet Spark LS | 4 | Hatchback | L4 | 4 | 31 | 39 | 1200 | 84 | 144.7 | 61.0 | 62.9 | 2269 | F | M-5 | M | 5 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
16 | Chevrolet Suburban LTZ | 4 | SUV | V8 | 8 | 15 | 21 | 5300 | 320 | 224.0 | 80.5 | 74.4 | 5674 | R | A-6 | A | 6 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
17 | Chrysler 200 Touring LX | 4 | Sedan | L4 | 4 | 20 | 31 | 2400 | 173 | 191.7 | 72.5 | 54.9 | 3402 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
18 | Chrysler 300 S | 4 | Sedan | V6 | 6 | 19 | 31 | 3600 | 300 | 198.6 | 75.0 | 58.7 | 4029 | R | A-8 | A | 8 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
19 | Dodge Charger SXT | 4 | Sedan | V6 | 6 | 19 | 31 | 3600 | 292 | 199.9 | 75.0 | 58.4 | 3996 | R | A-8 | A | 8 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
20 | Dodge Dart Limited | 4 | Sedan | L4 | 4 | 23 | 35 | 2400 | 184 | 183.9 | 72.0 | 57.7 | 3242 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
21 | Fiat 500 Sport | 2 | Hatchback | L4 | 4 | 31 | 40 | 1400 | 135 | 139.6 | 64.1 | 59.8 | 2434 | F | M-5 | M | 5 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
22 | Ford Fiesta S | 4 | Hatchback | L4 | 4 | 29 | 39 | 1600 | 120 | 159.7 | 67.8 | 58.1 | 2575 | F | A-6 | A | 6 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
23 | Ford Focus SE | 4 | Sedan | L4 | 4 | 27 | 37 | 2000 | 160 | 178.5 | 71.8 | 57.7 | 2960 | F | M-5 | M | 5 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
24 | Ford Mustang GT | 2 | Coupe | V8 | 8 | 15 | 26 | 5000 | 420 | 188.5 | 73.9 | 55.8 | 3618 | R | M-6 | M | 6 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
25 | Ford Taurus | 4 | Sedan | V6 | 6 | 19 | 29 | 3500 | 288 | 2029 | 76.2 | 60.7 | 4054 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
26 | Honda Accord LX | 4 | Sedan | L4 | 4 | 24 | 34 | 2356 | 185 | 191.4 | 72.8 | 57.7 | 3192 | F | M-6 | M | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
27 | Honda CRV LX | 4 | SUV | L4 | 4 | 23 | 31 | 2354 | 185 | 178.3 | 71.6 | 64.7 | 3305 | F | A-5 | A | 5 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
28 | Hyundai Azera Limited | 4 | Sedan | V6 | 6 | 19 | 29 | 3300 | 293 | 193.3 | 73.2 | 57.9 | 3605 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
29 | Hyundai Genesis 5.0 | 4 | Sedan | V8 | 8 | 15 | 23 | 5000 | 429 | 196.5 | 74.4 | 58.3 | 4240 | R | A-8 | A | 8 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
30 | Hyundai Santa Fe GLS | 4 | SUV | V6 | 6 | 18 | 25 | 3300 | 290 | 193.1 | 74.2 | 66.9 | 3933 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
31 | Infiniti Q60 | 4 | Coupe | V6 | 6 | 19 | 27 | 3700 | 330 | 183.1 | 71.8 | 54.8 | 3633 | R | A-7 | A | 7 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
32 | Infiniti QX50 | 4 | SUV | V6 | 6 | 17 | 25 | 3700 | 325 | 182.3 | 71.0 | 61.9 | 3790 | R | A-7 | A | 7 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
33 | Jaguar F-Type | 2 | Coupe | V6 | 6 | 20 | 28 | 3000 | 340 | 176.0 | 75.7 | 51.5 | 3477 | R | A-8 | A | 8 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
34 | Jeep Compass Limited | 4 | SUV | L4 | 4 | 21 | 28 | 2400 | 172 | 175.1 | 71.4 | 65.0 | 3258 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
35 | Jeep Grand Cherokee Limited | 4 | SUV | V6 | 6 | 17 | 25 | 3600 | 290 | 189.8 | 76.5 | 68.1 | 4685 | R | A-8 | A | 8 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
36 | Kia Forte LX | 4 | Sedan | L4 | 4 | 25 | 36 | 1797 | 148 | 179.5 | 70.1 | 56.5 | 2776 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
37 | Kia Soul | 4 | Hatchback | L4 | 4 | 24 | 30 | 1600 | 138 | 163.0 | 70.9 | 63.0 | 2615 | F | M-6 | M | 6 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
38 | Kia Sportage LX | 4 | SUV | L4 | 4 | 21 | 30 | 2359 | 176 | 174.8 | 73.0 | 64.4 | 3186 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
39 | Land Rover Range Rover Sport | 4 | SUV | V8 | 8 | 13 | 19 | 5000 | 510 | 196.8 | 81.6 | 72.3 | 5137 | A | A-8 | A | 8 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
40 | Lexus IS 250 | 2 | Sedan | V6 | 6 | 21 | 30 | 2500 | 204 | 183.7 | 71.3 | 56.3 | 3461 | R | A-6 | A | 6 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
41 | Lexus LS 460 | 4 | Sedan | V8 | 8 | 16 | 24 | 4600 | 386 | 200.0 | 73.8 | 58.1 | 4233 | R | A-8 | A | 8 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
42 | Lexus RX 350 | 4 | SUV | V6 | 6 | 18 | 25 | 3500 | 270 | 187.8 | 74.2 | 66.7 | 4178 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
43 | Lincoln MKT | 4 | SUV | V6 | 6 | 17 | 25 | 3700 | 303 | 207.6 | 76.0 | 67.4 | 4702 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
44 | Lincoln MKZ | 4 | Sedan | L4 | 4 | 22 | 33 | 2000 | 240 | 194.1 | 73.4 | 58.2 | 3713 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
45 | Lincoln Navigator | 4 | SUV | V8 | 8 | 14 | 20 | 5400 | 310 | 208.4 | 78.8 | 78.3 | 5794 | R | A-6 | A | 6 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
46 | Mazda 2 | 4 | Hatchback | L4 | 4 | 28 | 34 | 1500 | 100 | 155.5 | 66.7 | 58.1 | 2306 | F | M-5 | M | 5 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
47 | Mazda CX-5 Sport | 4 | SUV | L4 | 4 | 26 | 32 | 2000 | 155 | 179.3 | 72.4 | 67.3 | 3194 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
48 | Mercedes-Benz C-250 | 4 | Sedan | L4 | 4 | 22 | 31 | 1800 | 201 | 180.8 | 69.7 | 56.9 | 3428 | R | A-7 | A | 7 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
49 | Mercedes-Benz CL600 | 2 | Coupe | V12 | 2 | 12 | 18 | 5500 | 510 | 200.6 | 84.2 | 55.8 | 4894 | R | A-5 | A | 5 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
50 | Mercedes-Benz ML350 | 4 | SUV | V6 | 6 | 17 | 22 | 3500 | 302 | 189.1 | 84.3 | 70.7 | 4751 | R | A-7 | A | 7 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
51 | Mini-Cooper | 2 | Hatchback | L4 | 4 | 29 | 37 | 1600 | 121 | 146.6 | 66.3 | 55.4 | 2605 | F | M-6 | M | 6 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
52 | Mitsubishi Outlander Sport SE | 4 | SUV | L4 | 4 | 25 | 31 | 2400 | 166 | 183.3 | 70.9 | 66.1 | 3296 | F | CVT | C | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |
53 | Nissan Armada SV | 4 | SUV | V8 | 8 | 13 | 19 | 5600 | 317 | 207.7 | 79.3 | 77.2 | 5267 | R | A-5 | A | 5 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
54 | Nissan Cube S | 4 | Hatchback | L4 | 4 | 25 | 30 | 1800 | 127 | 156.7 | 66.7 | 65.0 | 2789 | F | M-6 | M | 6 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
55 | Nissan Maxima SV | 4 | Sedan | V6 | 6 | 19 | 26 | 3500 | 290 | 190.6 | 73.2 | 57.8 | 3570 | F | CVT | C | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | |
56 | Nissan Murano SV | 4 | SUV | V6 | 6 | 18 | 24 | 3500 | 260 | 189.9 | 74.1 | 67.0 | 4011 | F | CVT | C | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |
57 | Nissan Versa S | 4 | Sedan | L4 | 4 | 27 | 36 | 1600 | 109 | 175.4 | 66.7 | 59.6 | 2363 | F | M-5 | M | 5 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
58 | Porsche Cayenne | 4 | SUV | V6 | 6 | 15 | 22 | 3600 | 300 | 190.8 | 76.3 | 67.4 | 4398 | A | M-6 | M | 6 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 |
59 | Scion FR-S | 2 | Coupe | L4 | 4 | 25 | 34 | 2000 | 200 | 166.7 | 69.9 | 50.6 | 2806 | R | A-6 | A | 6 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
60 | Scion iQ | 2 | Hatchback | L4 | 4 | 36 | 37 | 1329 | 94 | 120.1 | 66.1 | 59.1 | 2127 | F | CVT | C | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | |
61 | Scion XD | 4 | SUV | L4 | 4 | 27 | 33 | 1798 | 128 | 154.7 | 67.9 | 59.4 | 2665 | F | A-4 | A | 4 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
62 | Suburu Forester 2.5i Limited | 4 | SUV | L4 | 4 | 24 | 32 | 2500 | 170 | 180.9 | 70.7 | 68.2 | 3419 | A | CVT | C | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | |
63 | Suburu Legacy 2.5i Limited | 4 | Sedan | L4 | 4 | 24 | 32 | 2500 | 173 | 187.2 | 71.7 | 59.3 | 3427 | A | CVT | C | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | |
64 | Toyota Camry XLE | 4 | Sedan | L4 | 4 | 25 | 35 | 2500 | 178 | 189.2 | 71.7 | 57.9 | 3280 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
65 | Toyota Land Cruiser | 4 | SUV | V8 | 8 | 13 | 18 | 5700 | 381 | 194.9 | 77.6 | 74.0 | 5765 | A | A-6 | A | 6 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
66 | Toyota RAV4 XLE | 4 | SUV | L4 | 4 | 24 | 31 | 2500 | 176 | 179.9 | 72.6 | 67.1 | 3465 | F | A-6 | A | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
67 | Toyota Yaris | 3 | Hatchback | L4 | 4 | 30 | 37 | 1500 | 106 | 153.5 | 66.7 | 59.4 | 2295 | F | M-5 | M | 5 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
68 | Volkswagen Beetle 2.5L | 2 | Coupe | L4 | 4 | 22 | 29 | 2500 | 170 | 168.4 | 71.2 | 58.6 | 3038 | F | A-6 | A | 6 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
69 | Volkswagen Jetta SE | 4 | Sedan | L4 | 4 | 25 | 36 | 1800 | 170 | 182.2 | 70.0 | 57.2 | 3070 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
70 | Volkswagen Toureg V6 Sport | 4 | SUV | V6 | 6 | 17 | 23 | 3600 | 280 | 188.8 | 76.4 | 68.2 | 4711 | A | A-8 | A | 8 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
71 | Volkswagen Passat SE | 4 | Sedan | L4 | 4 | 24 | 34 | 1800 | 170 | 191.6 | 72.2 | 58.5 | 3230 | F | A-6 | A | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
unusual | unusual | does not apply | |||||||||||||||||||||||||
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