# Question: How s your mileage Weight in tons and fuel economy in

How's your mileage? Weight (in tons) and fuel economy (in mpg) were measured for a sample of seven diesel trucks. The results are presented in the following table.

a. Compute the least-squares regression line for predicting mileage from weight.

b. Construct a residual plot. Verify that a linear model is appropriate.

c. If two trucks differ in weight by 5 tons, by how much would you predict their mileages to differ?

d. Predict the mileage for trucks with a weight of 15 tons.

a. Compute the least-squares regression line for predicting mileage from weight.

b. Construct a residual plot. Verify that a linear model is appropriate.

c. If two trucks differ in weight by 5 tons, by how much would you predict their mileages to differ?

d. Predict the mileage for trucks with a weight of 15 tons.

**View Solution:**## Answer to relevant Questions

How's your mileage? Using the data in Exercise 3: a. Compute the correlation coefficient between weight and mileage. b. Compute the coefficient of determination. c. How much of the variation in mileage is explained by the ...The following table presents the number of years of study in English and language arts and the average SAT writing score for students who took the 2008 SAT exam. a. Compute the least-squares regression line for predicting ...Compute the correlation coefficient between this year's unemployment and next year's unemployment. Colored dice: A six- sided die has one face painted red, two faces painted white, and three faces painted blue. Each face is equally likely to turn up when the die is rolled. a. Construct a sample space for the experiment of ...Defective parts: A process manufactures microcircuits that are used in computers. Twelve percent of the circuits are defective. Assume that three circuits are installed in a computer. Denote a defective circuit by ...Post your question