Companies in the U.S. car rental market vary greatly in terms of the size of the fleet,

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Companies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. The following data were used to investigate the relationship between the number of cars in service (1000s) and the annual revenue ($ millions) for six smaller car rental companies (Auto Rental News website). 

Cars Revenue Company (1000s) ($ millions) U-Save Auto Rental System, Inc. Payless Car Rental System, Inc. ACE Rent A Car 11.5 118 10.0 135 9.0 100 Rent-A-Wreck of America 5.5 37 Triangle Rent-A-Car Affordable/Sensible 4.2 40 3.3 32


With x = cars in service (1000s) and y = annual revenue ($ millions), the estimated regression equation is yˆ = −17.005 + 12.966x. For these data SSE = 1043.03 and SST = 10,568. Do these results indicate a significant relationship between the number of cars in service and the annual revenue?

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Statistics For Business & Economics

ISBN: 9781337901062

14th Edition

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran

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