Homework/practice question for review please help! UploadCars04-1data and use engine size to predict the car's weight. Answer the questions.

Vehicle Name Hybrid SuggestedRetailPrice DealerCost EngineSize Cylinders Horsepower CityMPG HighwayMPG Weight WheelBase Length Width Chevrolet Aveo 4dr 0 11690 10965 1.6 4 103 28 34 2370 98 167 66 Chevrolet Aveo LS 4dr hatch 0 12585 11802 1.6 4 103 28 34 2348 98 153 66 Chevrolet Cavalier 2dr 0 14610 13697 2.2 4 140 26 37 2617 104 183 69 Chevrolet Cavalier 4dr 0 14810 13884 2.2 4 140 26 37 2676 104 183 68 Chevrolet Cavalier LS 2dr 0 16385 15357 2.2 4 140 26 37 2617 104 183 69 Dodge Neon SE 4dr 0 13670 12849 2 4 132 29 36 2581 105 174 67 Dodge Neon SXT 4dr 0 15040 14086 2 4 132 29 36 2626 105 174 67 Ford Focus ZX3 2dr hatch 0 13270 12482 2 4 130 26 33 2612 103 168 67 Ford Focus LX 4dr 0 13730 12906 2 4 110 27 36 2606 103 168 67 Ford Focus SE 4dr 0 15460 14496 2 4 130 26 33 2606 103 168 67 Ford Focus ZX5 5dr 0 15580 14607 2 4 130 26 33 2691 103 168 67 Honda Civic DX 2dr 0 13270 12175 1.7 4 115 32 38 2432 103 175 67 Honda Civic HX 2dr 0 14170 12996 1.7 4 117 36 44 2500 103 175 67 Honda Civic LX 4dr 0 15850 14531 1.7 4 115 32 38 2513 103 175 68 Hyundai Accent 2dr hatch 0 10539 10107 1.6 4 103 29 33 2255 96 167 66 Hyundai Accent GL 4dr 0 11839 11116 1.6 4 103 29 33 2290 96 167 66 Hyundai Accent GT 2dr hatch 0 11939 11209 1.6 4 103 29 33 2339 96 167 66 Hyundai Elantra GLS 4dr 0 13839 12781 2 4 138 26 34 2635 103 178 68 Hyundai Elantra GT 4dr 0 15389 14207 2 4 138 26 34 2635 103 178 68 Hyundai Elantra GT 4dr hatch 0 15389 14207 2 4 138 26 34 2698 103 178 68 Kia Optima LX 4dr 0 16040 14910 2.4 4 138 23 30 3281 106 186 72 Kia Rio 4dr manual 0 10280 9875 1.6 4 104 26 33 2403 95 167 66 Kia Rio 4dr auto 0 11155 10705 1.6 4 104 25 32 2458 95 167 66 Kia Spectra 4dr 0 12360 11630 1.8 4 124 24 32 2661 101 178 68 Kia Spectra GS 4dr hatch 0 13580 12830 1.8 4 124 24 32 2686 101 178 68 Kia Spectra GSX 4dr hatch 0 14630 13790 1.8 4 124 24 32 2697 101 178 68 Mini Cooper 0 16999 15437 1.6 4 115 28 37 2524 97 143 67 Nissan Sentra 1.8 4dr 0 12740 12205 1.8 4 126 28 35 2513 100 178 67 Nissan Sentra 1.8 S 4dr 0 14740 13747 1.8 4 126 28 35 2581 100 178 67 Pontiac Sunfire 1SA 2dr 0 15495 14375 2.2 4 140 24 33 2771 104 182 68 Saturn Ion1 4dr 0 10995 10319 2.2 4 140 26 35 2692 103 185 67 Saturn lon2 4dr 0 14300 13393 2.2 4 140 26 35 2692 103 185 67 Saturn lon3 4dr 0 15825 14811 2.2 4 140 26 35 2692 103 185 67 Saturn lon2 quad coupe 2dr 0 14850 13904 2.2 4 140 26 35 2751 103 185 68 Saturn lon3 quad coupe 2dr 0 16350 15299 2.2 4 140 26 35 2751 103 185 68 Scion xA 4dr hatch 0 12965 12340 1.5 4 108 32 38 2340 93 154 67 Suzuki Aeno S 4dr 0 12884 12719 2.3 4 155 25 31 2676 98 171 68 Suzuki Aerio LX 4dr 0 14500 14317 2.3 4 155 25 31 2676 98 171 68 Suzuki Forenza S 4dr 0 12269 12116 2 4 119 24 31 2701 102 177 68 Suzuki Forenza EX 4dr 0 15568 15378 2 4 119 22 30 2756 102 177 68 Toyota Corolla CE 4dr 0 14085 13065 1.8 4 130 32 40 2502 102 178 67 Toyota Corolla S 4dr 0 15030 13650 1.8 4 130 32 40 2524 102 178 67 Toyota Corolla LE 4dr 0 15295 13889 1.8 4 130 32 40 2524 102 178 67 Toyota Echo 2dr manual 0 10760 10144 1.5 4 108 35 43 2035 93 163 65 Toyota Echo 2dr auto 0 11560 10896 1.5 4 108 33 39 2085 93 163 65 Toyota Echo 4dr 0 11290 10642 1.5 4 108 35 43 2055 93 163 65 Buick Century Custom 4dr 0 22180 20351 3.1 6 175 20 30 3353 109 195 73 Chevrolet Impala 4dr 0 21900 20095 3.4 6 180 21 32 3465 111 200 73 Chevrolet Malibu 4dr 0 18995 17434 2.2 4 145 24 34 3174 106 188 70 Chevrolet Malibu LS 4dr 0 20370 18639 3.5 6 200 22 30 3297 106 188 70 Chevrolet Monte Carlo LS 2dr 0 21825 20026 3.4 6 180 21 32 3340 111 198 73 Chrysler PT Cruiser 4dr 0 17985 16919 2.4 4 150 22 29 3101 103 169 67 Chrysler PT Cruiser Limited 4dr 0 22000 20573 2.4 4 150 22 29 3105 103 169 67 Chrysler Sebring 4dr 0 19090 17805 2.4 4 150 22 30 3173 108 191 71 Chrysler Sebring Touring 4dr 0 21840 20284 2.7 6 200 21 28 3222 108 191 71 Dodge Intrepid SE 4dr 0 22035 20502 2.7 6 200 21 29 3469 113 204 75 Dodge Stratus SXT 4dr 0 18820 17512 2.4 4 150 21 28 3182 108 191 71 Dodge Stratus SE 4dr 0 20220 18821 2.4 4 150 21 28 3175 108 191 71 Ford Focus SVT 2dr 0 19135 17878 2 4 170 21 28 2750 103 168 67 Ford Taurus LX 4dr 0 20320 18881 3 6 155 20 27 3306 109 198 73 Ford Taurus SES Duratec 4dr 0 22735 20857 3 6 201 19 26 3313 109 198 73 Honda Accord LX 2dr 0 19860 17924 2.4 4 160 26 34 2994 105 188 71 Honda Accord EX 2dr 0 22260 20080 2.4 4 160 26 34 3047 105 188 71 Honda Civic EX 4dr 0 17750 16265 1.7 4 127 32 37 2601 103 175 68 Honda Civic Si 2dr hatch 0 19490 17849 2 4 160 26 30 2782 101 166 67 Honda Civic Hybrid 4dr manual (gas/electric) 1 20140 18451 1.4 4 93 46 51 2732 103 175 68 Honda Insight 2dr (gas/electric) 1 19110 17911 2 3 73 60 66 1850 95 155 67 Hyundai Sonata GLS 4dr 0 19339 17574 2.7 6 170 19 27 3217 106 187 72 Hyundai Sonata LX 4dr 0 20339 18380 2.7 6 170 19 27 3217 106 187 72 Kia Optima LX V6 4dr 0 18435 16850 2.7 6 170 20 27 3279 106 186 72 Mazda6 i 4dr 0 19270 17817 2.3 4 160 24 32 3042 105 187 70 Mercury Sable GS 4dr 0 21595 19848 3 6 155 20 27 3308 109 200 73 Mini Cooper S 0 19999 18137 1.6 4 163 25 34 2678 97 144 67 Nissan Altima S 4dr 0 19240 18030 2.5 4 175 21 26 3039 110 192 70 Nissan Sentra SE-R 4dr 0 17640 16444 2.5 4 165 23 28 2761 100 178 67 Oldsmobile Alero GX 2dr 0 18825 17642 2.2 4 140 24 32 2946 107 187 70 Pontiac Grand Am GT 2dr 0 22450 20595 3.4 6 175 20 29 3118 107 186 70 Pontiac Grand Prix GT1 4dr 0 22395 20545 3.8 6 200 20 30 3477 111 198 74 Pontiac Sunfire 1SC 2dr 0 17735 16369 2.2 4 140 24 33 2771 104 182 68 Saturn L300-2 4dr 0 21410 19801 3 6 182 20 28 3197 107 190 69 Subaru Impreza 2.5 RS 4dr 0 19945 18399 2.5 4 165 22 28 2965 99 174 69 Subaru Legacy L 4dr 0 20445 18713 2.5 4 165 21 28 3285 104 184 69 Suzuki Verona LX 4dr 0 17262 17053 2.5 6 155 20 27 3380 106 188 72 Toyota Camry LE 4dr 0 19560 17558 2.4 4 157 24 33 3086 107 189 71 Toyota Camry LE V6 4dr 0 22775 20325 3 6 210 21 29 3296 107 189 71 Toyota Camry Solara SE 2dr 0 19635 17722 2.4 4 157 24 33 3175 107 193 72 Toyota Camry Solara SE V6 2dr 0 21965 19819 3.3 6 225 20 29 3417 107 193 72 Toyota Prius 4dr (gas/electric) 1 20510 18926 1.5 4 110 59 51 2890 106 175 68 Volkswagen Golf GLS 4dr 0 18715 17478 2 4 115 24 31 2897 99 165 68 Volkswagen GTI 1.8T 2dr hatch 0 19825 18109 1.8 4 180 24 31 2934 99 168 68 Volkswagen Jetta GLS TDI 4dr 0 21055 19638 1.9 4 100 38 46 3003 99 172 68 Volkswagen New Beetle GLS 1.8T 2dr 0 21055 19638 1.8 4 150 24 31 2820 99 161 68 Acura RSX Type S 2dr 0 23820 21761 2 4 200 24 31 2778 101 172 68 Acura TSX 4dr 0 26990 24647 2.4 4 200 22 29 3230 105 183 69 Audi A4 1.8T 4dr 0 25940 23508 1.8 4 170 22 31 3252 104 179 70 BMW 325i 4dr 0 28495 26155 2.5 6 184 20 29 3219 107 176 69 Buick LeSabre Custom 4dr 0 26470 24282 3.8 6 205 20 29 3567 112 200 74 Buick Regal LS 4dr 0 24895 22835 3.8 6 200 20 30 3461 109 196 73 Buick Regal GS 4dr 0 28345 26047 3.8 6 240 18 28 3536 109 196 73 Chevrolet Impala LS 4dr 0 25000 22931 3.8 6 200 20 30 3476 111 200 73 Chevrolet Impala SS 4dr 0 27995 25672 3.8 6 240 18 28 3606 111 200 73 Chevrolet Malibu LT 4dr 0 23495 21551 3.5 6 200 23 32 3315 106 188 70 Chevrolet Monte Carlo SS 2dr 0 24225 22222 3.8 6 200 18 28 3434 111 198 73 Chrysler 300M 4dr 0 29865 27797 3.5 6 250 18 27 3581 113 198 74 Chrysler Concorde LX 4dr 0 24130 22452 2.7 6 200 21 29 3479 113 208 74 Chrysler Concorde LXi 4dr 0 26860 24909 3.5 6 232 19 27 3548 113 208 74 Chrvsler PT Cruiser GT 4dr 0 25955 24172 2.4 4 220 21 27 3217 103 169 67 Chrysler Sebring convertible 2dr 0 25215 23451 2.4 4 150 22 30 3357 106 194 64 Dodge Intrepid ES 4dr 0 24885 23058 3.5 6 232 18 27 3487 113 204 75 Ford Crown Victoria 4dr 0 24345 22856 4.6 8 224 17 25 4057 115 212 78 Ford Crown Victoria LX 4dr 0 27370 25105 4.6 8 224 17 25 4057 115 212 78 Honda Accord LX V6 4dr 0 23760 21428 3 6 240 21 30 3349 108 190 72 Honda Accord EX V6 2dr 0 26960 24304 3 6 240 21 30 3294 105 188 71 Hyundai XG350 4dr 0 24589 22055 3.5 6 194 17 26 3651 108 192 72 Hyundai XG350 L 4dr 0 26189 23486 3.5 6 194 17 26 3651 108 192 72 Infiniti G35 4dr 0 28495 26157 3.5 6 260 18 26 3336 112 187 69 Infiniti G35 Sport Coupe 2dr 0 29795 27536 3.5 6 280 18 26 3416 112 182 72 Jaguar X-Type 2.5 4dr 0 29995 27355 2.5 6 192 18 26 3428 107 184 70 Mercedes-Benz C230 Sport 2dr 0 26060 24249 1.8 4 189 22 30 3250 107 178 68 Mercedes-Benz C320 Sport 2dr 0 28370 26435 3.2 6 215 19 26 3430 107 178 68 Mercury Grand Marquis GS 4dr 0 24695 23217 4.6 8 224 17 25 4052 115 212 78 Mercury Grand Marquis LS Premium 4dr 0 29595 27148 4.6 8 224 17 25 4052 115 212 78 Mercury Sable LS Premium 4dr 0 23895 21918 3 6 201 19 26 3315 109 200 73 Mitsubishi Diamante LS 4dr 0 29282 27250 3.5 6 205 18 25 3549 107 194 70 Mitsubishi Galant GTS 4dr 0 25700 23883 3.8 6 230 18 26 3649 108 191 72 Nissan Altima SE 4dr 0 23290 21580 3.5 6 245 21 26 3197 110 192 70 Nissan Maxima SE 4dr 0 27490 25182 3.5 6 265 20 28 3473 111 194 72 Nissan Maxima SL 4dr 0 29440 26966 3.5 6 265 20 28 3476 111 194 72 Oldsmobile Alero GLS 2dr 0 23675 21485 3.4 6 170 20 29 3085 107 187 70 Pontiac Grand Prix GT2 4dr 0 24295 22284 3.8 6 200 20 30 3484 111 198 74 Subaru Legacy GT 4dr 0 25645 23336 2.5 4 165 21 28 3395 104 184 69 Subaru Outback Limited Sedan 4dr 0 27145 24687 2.5 4 165 20 27 3495 104 184 69 Subaru Outback H6 4dr 0 29345 26660 3 6 212 19 26 3610 104 184 69 Toyota Avalon XL 4dr 0 26560 23693 3 6 210 21 29 3417 107 192 72 Toyota Camry XLE V6 4dr 0 25920 23125 3 6 210 21 29 3362 107 189 71 Toyota Camry Solara SLE V6 2dr 0 26510 23908 3.3 6 225 20 29 3439 107 193 72 Volkswagen Jetta GLI VR6 4dr 0 23785 21686 2.8 6 200 21 30 3179 99 172 68 Volkswagen New Beetle GLS convertible 2dr 0 23215 21689 2 4 115 24 30 3082 99 161 68 Volkswagen Passat GLS 4dr 0 23955 21898 1.8 4 170 22 31 3241 106 185 69 Volvo S40 4dr 0 25135 23701 1.9 4 170 22 29 2767 101 178 68 Acura TL 4dr 0 33195 30299 3.2 6 270 20 28 3575 108 186 72 Audi A41.8T convertible 2dr 0 35940 32506 1.8 4 170 23 30 3638 105 180 70 Audi A4 3.0 4dr 0 31840 28846 3 6 220 20 28 3462 104 179 70 Audi A4 3.0 Quattro 4dr manual 0 33430 30366 3 6 220 17 26 3583 104 179 70 Audi A4 3.0 Quattro 4dr auto 0 34480 31388 3 6 220 18 25 3627 104 179 70 Audi A6 3.0 4dr 0 36640 33129 3 6 220 20 27 3561 109 192 71 Audi A6 3.0 Quattro 4dr 0 39640 35992 3 6 220 18 25 3880 109 192 71 BMW 325Ci 2dr 0 30795 28245 2.5 6 184 20 29 3197 107 177 69 BMW 325Ci convertible 2dr 0 37995 34800 2.5 6 184 19 27 3560 107 177 69 BMW 325xi 4dr 0 30245 27745 2.5 6 184 19 27 3461 107 176 69 BMW 330i 4dr 0 35495 32525 3 6 225 20 30 3285 107 176 69 BMW 330Ci 2dr 0 36995 33890 3 6 225 20 30 3285 107 176 69 BMW 330xi 4dr 0 37245 34115 3 6 225 20 29 3483 107 176 69 BMW 525i 4dr 0 39995 36620 2.5 6 184 19 28 3428 114 191 73 Buick LeSabre Limited 4dr 0 32245 29566 3.8 6 205 20 29 3591 112 200 74 Buick Park Avenue 4dr 0 35545 32244 3.8 6 205 20 29 3778 114 207 75 Cadillac CTS VVT 4dr 0 30835 28575 3.6 6 255 18 25 3694 113 190 71 Chrysler 300M Special Edition 4dr 0 33295 30884 3.5 6 255 18 27 3650 113 198 74 Chrysler Sebring Limited convertible 2dr 0 30950 28613 2.7 6 200 21 28 3448 106 194 69 Ford Crown Victoria LX Sport 4dr 0 30315 27756 4.6 8 239 17 25 4057 115 212 78 Infiniti G35 4dr 0 32445 29783 3.5 6 260 18 26 3677 112 187 69 Infiniti I35 4dr 0 31145 28320 3.5 6 255 19 26 3306 108 194 70 Jaguar X-Type 3.0 4dr 0 33995 30995 3 6 227 18 25 3516 107 184 70 Lexus ES 330 4dr 0 32350 28755 3.3 6 225 20 29 3460 107 191 71 Lexus IS 300 4dr manual 0 31045 27404 3 6 215 18 25 3255 105 177 68 Lexus IS 300 4dr auto 0 32415 28611 3 6 215 18 24 3285 105 177 68 Lincoln LS V6 Luxury 4dr 0 32495 29969 3 6 232 20 26 3681 115 194 73 Lincoln LS V6 Premium 4dr 0 36895 33929 3 6 232 20 26 3681 115 194 73 Mercedes-Benz C240 4dr 0 32280 30071 2.6 6 168 20 25 3360 107 178 68 Mercedes-Benz C240 4dr 0 33480 31187 2.6 6 168 19 25 3360 107 178 68 Mercedes-Benz C320 Sport 4dr 0 35920 33456 3.2 6 215 19 26 3430 107 178 68 Mercedes-Benz C320 4dr 0 37630 35046 3.2 6 215 20 26 3450 107 178 68 Mercury Grand Marquis LS Ultimate 4dr 0 30895 28318 4.6 8 224 17 25 4052 115 212 78 Mercury Marauder 4dr 0 34495 31558 4.6 8 302 17 23 4195 115 212 78 Saab 9-3 Arc Sport 4dr 0 30860 29269 2 4 210 20 28 3175 105 183 69 Saab 9-3 Aero 4dr 0 33360 31562 2 4 210 20 28 3175 105 183 69 Saab 9-5 Arc 4dr 0 35105 33011 2.3 4 220 21 29 3470 106 190 71 Saab 9-5 Aero 4dr 0 39465 37721 2.3 4 250 21 29 3470 106 190 71 Subaru Outback H-6 VDC 4dr 0 31545 28603 3 6 212 19 26 3630 104 184 69 Toyota Avalon XLS 4dr 0 30920 27271 3 6 210 21 29 3439 107 192 72 Volkswagen Passat GLX V6 4MOTION 4dr 0 33180 30583 2.8 6 190 19 26 3721 106 185 69 Volkswagen Passat W8 4MOTION 4dr 0 39235 36052 4 8 270 18 25 3953 106 185 69 Volvo S60 2.5 4dr 0 31745 29916 2.5 5 208 20 27 3903 107 180 71 Volvo S60 T5 4dr 0 34845 32902 2.3 5 247 20 28 3766 107 180 71 Volvo S60 R 4dr 0 37560 35382 2.5 5 300 18 25 3571 107 181 71 Volvo S80 2.9 4dr 0 37730 35542 2.9 6 208 20 28 3576 110 190 72 Volvo S80 2.5T 4dr 0 37885 35688 2.5 5 194 20 27 3691 110 190 72 Acura 3.5 RL 4dr 0 43755 39014 3.5 6 225 18 24 3880 115 197 72 Acura 3.5 RL w/Navigation 4dr 0 46100 41100 3.5 6 225 18 24 3893 115 197 72 Audi A4 3.0 convertible 2dr 0 42490 38325 3 6 220 20 27 3814 105 180 70 Audi A4 3.0 Quattro convertible 2dr 0 44240 40075 3 6 220 18 25 4013 105 180 70 Audi A6 2.7 Turbo Quattro 4dr 0 42840 38840 2.7 6 250 18 25 3836 109 192 71 Audi A6 4.2 Quattro 4dr 0 49690 44936 4.2 8 300 17 24 4024 109 193 71 Audi A8 L Quattro 4dr 0 69190 64740 4.2 8 330 17 24 4399 121 204 75 Audi S4 Quattro 4dr 0 48040 43556 4.2 8 340 14 20 3825 104 179 70 BMW 330Ci convertible 2dr 0 44295 40530 3 6 225 19 28 3616 107 177 69 BMW 530i 4dr 0 44995 41170 3 6 225 20 30 3472 114 191 73 BMW 545iA 4dr 0 54995 50270 4.4 8 325 18 26 3814 114 191 73 BMW 745i 4dr 0 69195 63190 4.4 8 325 18 26 4376 118 198 75 BMW 745Li 4dr 0 73195 66830 4.4 8 325 18 26 4464 123 204 75 Buick Park Avenue Ultra 4dr 0 40720 36927 3.8 6 240 18 28 3909 114 207 75 Cadillac Deville 4dr 0 45445 41650 4.6 8 275 18 26 3984 115 207 74 Cadillac Deville DTS 4dr 0 50595 46362 4.6 8 300 18 26 4044 115 207 74 Cadillac Seville SLS 4dr 0 47955 43841 4.6 8 275 18 26 3992 112 201 75 Infiniti M45 4dr 0 42845 38792 4.5 8 340 17 23 3851 110 197 70 Infiniti Q45 Luxury 4dr 0 52545 47575 4.5 8 340 17 23 3977 113 200 73 Jaguar S-Type 3.0 4dr 0 43895 40004 3 6 235 18 26 3777 115 192 72 Jaguar S-Type 4.2 4dr 0 49995 45556 4.2 8 294 18 28 3874 115 192 72 Jaguar S-Type R 4dr 0 63120 57499 4.2 8 390 17 24 4046 115 192 72 Jaguar Vanden Plas 4dr 0 68995 62846 4.2 8 294 18 28 3803 119 200 73 Jaguar XJ8 4dr 0 59995 54656 4.2 8 294 18 28 3803 119 200 73 Jaguar XJR 4dr 0 74995 68306 4.2 8 390 17 24 3948 119 200 73 Lexus GS 300 4dr 0 41010 36196 3 6 220 18 25 3649 110 189 71 Lexus GS 430 4dr 0 48450 42232 4.3 8 300 18 23 3715 110 189 71 Lexus LS 430 4dr 0 55750 48583 4.3 8 290 18 25 3990 115 197 72 Lincoln LS V8 Sport 4dr 0 40095 36809 3.9 8 280 17 24 3768 115 194 73 Lincoln LS V8 Ultimate 4dr 0 43495 39869 3.9 8 280 17 24 3768 115 194 73 Lincoln Town Car Signature 4dr 0 41815 38418 4.6 8 239 17 25 4369 118 215 78 Lincoln Town Car Ultimate 4dr 0 44925 41217 4.6 8 239 17 25 4369 118 215 78 Lincoln Town Car Ultimate L 4dr 0 50470 46208 4.6 8 239 17 25 4474 124 221 78 Mercedes-Benz C32 AMG 4dr 0 52120 48522 3.2 6 349 16 21 3540 107 178 68 Mercedes-Benz CL500 2dr 0 94820 88324 5 8 302 16 24 4085 114 196 73 Mercedes-Benz CL600 2dr 0 128420 119600 5.5 12 493 13 19 4473 114 196 73 Mercedes-Benz CLK320 coupe 2dr (convertible) 0 45707 41966 3.2 6 215 20 26 3770 107 183 69 Mercedes-Benz CLK500 coupe 2dr (convertible) 0 52800 49104 5 8 302 17 22 3585 107 183 69 Mercedes-Benz E320 4dr 0 48170 44849 3.2 6 221 19 27 3635 112 190 71 Mercedes-Benz E500 4dr 0 57270 53382 5 8 302 16 20 3815 112 190 71 Mercedes-Benz S430 4dr 0 74320 69168 4.3 8 275 18 26 4160 122 203 73 Mercedes-Benz S500 4dr 0 86970 80939 5 8 302 16 24 4390 122 203 73 Saab 9-3 Arc convertible 2dr 0 40670 38520 2 4 210 21 29 3480 105 182 69 Saab 9-3 Aero convertible 2dr 0 43175 40883 2 4 210 21 30 3700 105 182 69 Volvo C70 LPT convertible 2dr 0 40565 38203 2.4 5 197 21 28 3450 105 186 72 Volvo C70 HPT convertible 2dr 0 42565 40083 2.3 5 242 20 26 3450 105 186 72 Volvo S80 T6 4dr 0 45210 42573 2.9 6 268 19 26 3653 110 190 72 

I) For an additional 2.0 liter in engine size how much the car's weight will change?(11.11 points)

• a. It will increase 481 pounds.
• b. It will increase by 962 pounds.
• c. It will increase by 2880 pounds.
• d. It will increase by 1918 pounds.
• e. Not applicable.

II) After performing the regression analysis you are asked to pick one number that would best answer the question: Are these two variables, engine size and car's weight, related or not? What is this number and why?(11.11 points)

• a. The number is the P-value, which in this case is very low indicating a strong probability that the two variables are related.
• b. The number is the slope and it clearly indicates the relation: For each additional liter in engine size, the car's weight increases.
• c. This number is R-square and since it is not close to 1 we cannot claim that these two variables are related.
• d. None of these.

III) Given a car that has engine size of 3.0 liters use regression analysis and all available information in there, in order to predict this car's weight. What is your interval prediction?(11.11 points)

• a. [3079,3644]
• b. 282
• c. 1918
• d. 3361
• e. Not applicable