EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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Textbook Question
Chapter 1, Problem 3SE
Refer to Table 1.6.
- a. What is the average miles per gallon for city driving?
- b. On average, how much higher is the miles per gallon for highway driving as compared to city driving?
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 |
- c. What percentage of the cars have four-cylinder engines?
- d. What percentage of the cars use regular fuel?
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Refer to Table 1.6.
a. What is the average cost for the tablets?
b. Compare the average cost of tablets with a Windows operating system to the average cost of tablets with an Android operating system.
c.What percentage of tablets use a CPU manufactured by Tl OMAP?
d. What percentage of tablets use an Android operating system?
b. Round off in 4 decimal places. With complete solution and box the final answer.
4. Use this data from the HANES5 survey to estimate the average weight of men 18 and over
whose heights were 73 inches.
average height: 69 inches
average weight: 190 pounds
r = 0.41
SD 3 inches
SD 42 pounds
Chapter 1 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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