Bundle: Statistics for Business & Economics, Loose-Leaf Version, 13th + MindTap Business Statistics with XLSTAT, 1 term (6 months) Printed Access Card
13th Edition
ISBN: 9781337148092
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Textbook Question
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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A common way for two people to settle a frivolous dispute is to play a game of rock-paper-scissors. In this game, each person simultaneously displays a hand signal to indicate a rock, a piece of paper, or a pair of scissors. Rock beats scissors, scissors beats paper, and paper beats rock. If both players select the same hand signal, the game results in a tie.
Two roommates, roommate A and roommate B, are expecting company and are arguing over who should have to wash the dishes before the company arrives. Roommate A suggests a game of rock-paper-scissors to settle the dispute.
Consider the game of rock-paper-scissors to be an experiment. In the long run, roommate A chooses rock 21% of the time, and roommate B chooses rock 61% of the time; roommate A selects paper 39% of the time, and roommate B selects paper 21% of the time; roommate A chooses scissors 40% of the time, and roommate B chooses scissors 18% of the time. (These choices are made randomly and independently of each…
Chapter 14 Solutions
Bundle: Statistics for Business & Economics, Loose-Leaf Version, 13th + MindTap Business Statistics with XLSTAT, 1 term (6 months) Printed Access Card
Ch. 14.2 - Given are five observations for two variables, x...Ch. 14.2 - Given are five observations for two variables, x...Ch. 14.2 - Given are five observations collected in a...Ch. 14.2 - The following data give the percentage of women...Ch. 14.2 - Brawdy Plastics, Inc., produces plastic seat belt...Ch. 14.2 - The National Football League (NFL) records a...Ch. 14.2 - A sales manager collected the following data on...Ch. 14.2 - The American Association of Individual Investors...Ch. 14.2 - Prob. 9ECh. 14.2 - On March 31, 2009, Ford Motor Companys shares were...
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