Do Heavier Cars Use More Gasoline? to Answer This Question,a

Multiple Choice

Do heavier cars use more gasoline? To answer this question,a researcher randomly selected 15 cars.He collected their weight (in hundreds of pounds) and the mileage (MPG) for each car.From a scatter plot made with the data,a linear model seemed appropriate.The following output was obtained from SPSS: To test if there is a significant straight-line relationship between the weight and the mileage of a car,we can perform a t test.What is the value of the t statistic for this test?

A) t = -3.182
B) t = 6.445
C) t = 6.780
D) This cannot be determined from the information given.