Refer to exercise 9 where 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, August 7, 2012).

With x = cars in service (1000s) and y = annual revenue ($millions), the estimated regression equation is y = €“ 17.005 + 12.966. 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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Cars (1000s) 11.5 10.0 9.0 5.5 4.2 3.3 Company U-Save Auto Rental System, Inc Payless Car Rental System, Inc. ACE Rent A Car Rent-A-Wreck of America Triangle Rent-A-Car Affordable/Sensible Revenue (Smillions) 118 135 100 37 40 32