Bundle: Statistics for Business & Economics, Loose-leaf Version, 13th + MindTap Business Statistics with XLSTAT, 2 terms (12 months) Printed Access Card
13th Edition
ISBN: 9781337127264
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Chapter 14.7, Problem 43E
A 2012 suvey conducted by Idea Works provided data showing the percentage of seats available when customers try to redeem points or miles for free travel. For each airline listed, the column labeled 2011 Percentage shows the percentage of seats available in 2011 and the column labeled 2012 shows the correponding percentage in 2012 (The Wall street Journal, May 17, 2012).
| Airline | 2011 Percentage |
2012 Percentage |
| AirBerlin | 96.4 | 100.0 |
| Air Canada | 82.1 | 78.6 |
| Air France, KLM | 65.0 | 55.7 |
| AirTran Airways | 47.1 | 87.1 |
| Alaska Airlines | 64.3 | 59.3 |
| American Airlines | 62.9 | 45.7 |
| British Airways | 61.4 | 79.3 |
| Cathay Pacific | 66.4 | 70.7 |
| Delta Air Lines | 27.1 | 27.1 |
| Emirates | 35.7 | 32.9 |
| GOL Airlines (Brazil) | 100.0 | 97.1 |
| Iberia | 70.7 | 63.6 |
| JetBlue | 79.3 | 86.4 |
| Lan (Chile) | 75.7 | 78.6 |
| Lufthansa, Swiss, Austrian | 85.0 | 92.1 |
| Qantas | 75.0 | 78.6 |
| SAS Scandinavian | 52.9 | 57.9 |
| Singapore Airlines | 90.7 | 90.7 |
| Southwest | 99.3 | 100.0 |
| Turkish Airways | 49.3 | 38.6 |
| United Airlines | 71.4 | 87.1 |
| US Airways | 25.7 | 33.6 |
| Virgin Australia | 91.4 | 90.0 |
- a. Develop a
scatter diagram with 2011 Percentage as the independent variable. - b. what does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
- c. Develop the estimated regression equation.
- d. Test for a significant relationship. Use α = .05.
- e. Did the estimated regression equation provide a good fit?
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Chapter 14 Solutions
Bundle: Statistics for Business & Economics, Loose-leaf Version, 13th + MindTap Business Statistics with XLSTAT, 2 terms (12 months) Printed Access Card
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