Question
Question 4. Finding the Best Car Value When trying to decide what car to buy, real value is not necessarily determined by how much you
Question 4. Finding the Best Car Value When trying to decide what car to buy, real value is not necessarily determined by how much you spend on the initial purchase. Instead, cars that are reliable and don't cost much to own often represent the best values. But no matter how reliable or inexpensive a car may cost to own, it must also perform well.
To measure value, Consumer Reports developed a statistic referred to as a value score. A car with a value score of 1.0 is considered to be an "average-value" car. A car with a value score of 2.0 is considered to be twice as good a value as a car with a value score of 1.0; a car with a value score of 0.5 is considered half as good as average; and so on.
The attached Microsoft Excel spreadsheet named "CarValues" contains information on the following:
- Car (Toyota Corolla, Hyundai Elantra, etc.)
- Size (i.e., small sedan, family sedan)
- Price (in US dollars)
- Road-test Score (based on a 100-point scale, with higher scores indicating better performance, comfort, convenience, and fuel economy)
- Predicted Reliability (based on a 5-point scale, with higher scores indicating better reliability)
- Value Score (higher scores indicating better value)
Car | Size | Price ($) | Road-Test Score | Predicted Reliability | Value Score |
Toyota Corolla (base, manual) | Small Sedan | 16,419 | 70 | 4 | 1.99 |
Mazda3 i Touring (manual) | Small Sedan | 18,895 | 74 | 5 | 1.94 |
Toyota Corolla LE | Small Sedan | 18,404 | 71 | 4 | 1.89 |
Mazda3 i Touring | Small Sedan | 19,745 | 70 | 5 | 1.82 |
Hyundai Elantra GLS | Small Sedan | 18,445 | 80 | 3 | 1.64 |
Nissan Sentra 2.0 SL | Small Sedan | 20,150 | 74 | 4 | 1.51 |
Kia Forte Sedan EX | Small Sedan | 19,040 | 71 | 3 | 1.32 |
Ford Focus SE | Small Sedan | 20,280 | 68 | 2 | 1.30 |
Ford Fiesta SE | Small Sedan | 16,595 | 61 | 2 | 1.25 |
Volkswagen Jetta SE (2.5) | Small Sedan | 20,300 | 60 | 3 | 1.24 |
Volkswagen Jetta TDI | Small Sedan | 25,100 | 68 | 2 | 1.18 |
Chevrolet Cruze LS (1.8) | Small Sedan | 18,375 | 67 | 1 | 0.96 |
Chevrolet Cruze 1LT (1.4T) | Small Sedan | 20,530 | 69 | 1 | 0.91 |
Nissan Altima 2.5 S (4-cyl.) | Family Sedan | 23,970 | 91 | 4 | 1.75 |
Kia Optima LX (2.4) | Family Sedan | 21,885 | 81 | 4 | 1.73 |
Subaru Legacy 2.5i Premium | Family Sedan | 23,830 | 83 | 4 | 1.73 |
Ford Fusion Hybrid | Family Sedan | 32,360 | 84 | 5 | 1.70 |
Honda Accord LX-P (4-cyl.) | Family Sedan | 23,730 | 80 | 4 | 1.62 |
Mazda6 i Sport (4-cyl.) | Family Sedan | 22,035 | 73 | 4 | 1.60 |
Hyundai Sonata GLS (2.4) | Family Sedan | 21,800 | 89 | 3 | 1.58 |
Ford Fusion SE (4-cyl.) | Family Sedan | 23,625 | 76 | 4 | 1.55 |
Chevrolet Malibu LT (4-cyl.) | Family Sedan | 24,115 | 74 | 3 | 1.48 |
Kia Optima SX (2.0T) | Family Sedan | 29,050 | 84 | 4 | 1.43 |
Ford Fusion SEL (V6) | Family Sedan | 28,400 | 80 | 4 | 1.42 |
Nissan Altima 3.5 SR (V6) | Family Sedan | 30,335 | 93 | 4 | 1.42 |
Hyundai Sonata Limited (2.0T) | Family Sedan | 28,090 | 89 | 3 | 1.39 |
Honda Accord EX-L (V6) | Family Sedan | 28,695 | 90 | 3 | 1.36 |
Mazda6 s Grand Touring (V6) | Family Sedan | 30,790 | 81 | 4 | 1.34 |
Ford Fusion SEL (V6, AWD) | Family Sedan | 30,055 | 75 | 4 | 1.32 |
Subaru Legacy 3.6R Limited | Family Sedan | 30,094 | 88 | 3 | 1.29 |
Chevrolet Malibu LTZ (V6) | Family Sedan | 28,045 | 83 | 3 | 1.20 |
Chrysler 200 Limited (V6) | Family Sedan | 27,825 | 52 | 5 | 1.20 |
Chevrolet Impala LT (3.6) | Family Sedan | 28,995 | 63 | 3 | 1.05 |
Lexus ES 350 | Family Sedan | 38,615 | 91 | 5 | 1.45 |
Acura TL (base) | Family Sedan | 36,465 | 82 | 5 | 1.41 |
Lexus IS 250 | Family Sedan | 33,734 | 84 | 5 | 1.40 |
Infiniti G25 Journey | Family Sedan | 34,225 | 86 | 4 | 1.37 |
Lexus HS 250h Premium | Family Sedan | 38,939 | 83 | 4 | 1.36 |
Acura TSX (4-cyl.) | Family Sedan | 29,675 | 84 | 3 | 1.35 |
Infiniti G37 Journey | Family Sedan | 37,225 | 95 | 4 | 1.33 |
Toyota Avalon Limited | Family Sedan | 35,485 | 86 | 3 | 1.27 |
Hyundai Genesis 3.8 | Family Sedan | 39,850 | 92 | 3 | 1.22 |
Volvo S60 T5 | Family Sedan | 35,100 | 77 | 4 | 1.18 |
Nissan Maxima 3.5 SV | Family Sedan | 33,700 | 83 | 3 | 1.17 |
Buick Regal CXL (2.4) | Family Sedan | 28,840 | 77 | 2 | 1.14 |
Lincoln MKZ | Family Sedan | 37,160 | 77 | 4 | 1.12 |
BMW 328i | Family Sedan | 39,175 | 77 | 3 | 1.10 |
Audi A4 Premium Quattro | Family Sedan | 35,895 | 76 | 3 | 1.08 |
Ford Taurus Limited | Family Sedan | 34,980 | 73 | 3 | 1.07 |
Buick Regal CXL (turbo) | Family Sedan | 32,135 | 79 | 2 | 1.06 |
Mercedes-Benz C300 Sport | Family Sedan | 37,325 | 77 | 3 | 1.04 |
Volkswagen CC Luxury (2.0T) | Family Sedan | 32,680 | 82 | 2 | 1.04 |
Saab 9-3 2.0T | Family Sedan | 31,615 | 69 | 3 | 1.00 |
Buick LaCrosse CXS (V6) | Family Sedan | 37,555 | 74 | 2 | 0.82 |
Using these data, answer the following questions:
A) Develop and report a scatterplot of the relationship between Road-Test Score (
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