An individual claims that the fuel consumption of his automobile does not depend on how fast the car is driven. To test the plausibility of this hypothesis, the car was tested at various speeds between 45 and 75 miles per hour. The miles per gallon attained at each of these speeds were determined, with the following data resulting.
Speed
Miles per gallon
45
24.2
50
25.0
55
23.3
60
22.0
65
21.5
70
20.6
75
19.8
Do these data refute the claim that the mileage per gallon of gas is unaffected by the speed at which the car is being driven?
Already registered? Login
Not Account? Sign up
Enter your email address to reset your password
Back to Login? Click here