A 2012 survey conducted by Idea Works provided data showing the percentage of seats available when customers
Question:
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?
f. Construct a residual plot. Comment on the shape of the plot as well as any unusual lookingpoints.
Transcribed Image Text:
Airline 2011 Percentage 2012 Percentage Air Berlin Air Canada Air France, KLM AirTran Airways Alaska Airlines American Airlines 96.4 82.1 65.0 47.1 64.3 62.9 100.0 55.7 87.1 59.3 45.7 79.3 British Airways Cathay Pacific Delta Air Lines Emirates GOL Airlines (Brazil) 66.4 27.1 32.9 100.0 70.7 79.3 ria 63.6 JetBlue LAN (Chile) Lufthansa, Swiss, Austrian Qantas SAS Scandinavian 86.4 92.1 57.9 100.0 75.7 85.0 52.9 90.7 99.3 Singapore Airlines Southwest Turkish Airways United Airlines US Airways Virgin Australia 38.6 90.0
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a b There appears to be a positive linear relationship between the two variables c The ...View the full answer
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Related Book For
Essentials Of Statistics For Business And Economics
ISBN: 9781305081598
7th Edition
Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam
Question Posted:
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