EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 8220100460463
Author: Anderson
Publisher: CENGAGE L
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Textbook Question
Chapter 1, Problem 2SE
The U.S. Department of Energy provides fuel economy information for a variety of motor vehicles. A sample of 10 automobiles is shown in Table 1.6 (Fuel Economy website, February 22, 2008). Data show the size of the automobile (compact, midsize, or large), the number of cylinders in the engine, the city driving miles per gallon, the highway driving miles per gallon, and the recommended fuel (diesel, premium, or regular).
a. How many elements are in this data set?
b. How many variables are in this data set?
c. Which variables are categorical and which variables are quantitative?
d. What type of measurement scale is used for each of the variables?
TABLE 1.6 FUEL ECONOMY INFORMATION FOR 10 AUTOMOBILES
| Car | Size | Cylinders | City MPG | Highway MPG | Fuel |
| Audi A8 | Large | 12 | 13 | 19 | Premium |
| BMW 328Xi | Compact | 6 | 17 | 25 | Premium |
| Cadillac CTS | Midsize | 6 | 16 | 25 | Regular |
| Chrysler 300 | Large | 8 | 13 | 18 | Premium |
| Ford Focus | Compact | 4 | 24 | 33 | Regular |
| Hyundai Elantra | Midsize | 4 | 25 | 33 | Regular |
| Jeep Grand Cherokee | Midsize | 6 | 17 | 26 | Diesel |
| Pontiac G6 | Compact | 6 | 15 | 22 | Regular |
| Toyota Camry | Midsize | 4 | 21 | 31 | Regular |
| Volkswagen Jetta | Compact | 5 | 21 | 29 | Regular |
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Chapter 1 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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