Chapter 14.5, Problem 30E

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).

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

With x = cars in service (1000s) and y = annual revenue ($ millions), the estimated regression equation is ŷ = −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?