Answer Happy

A regression of the gas mileage of a car (Mileage, measured in miles per gallon or mpg) on the car's weight (measured in kilograms or kg) using a random sample of cars weighing 900 - 4,500 kg yields the following: Mileage = 55.32 -0.0082 × Weight. If the average weight of cars in the sample is 3,560 kg, the average gas mileage in the sample will be (Round your answer to two decimal places.) Suppose that a car weighs 3,560 kg and its actual mileage is 26.32 mpg. The OLS residual in this case is mpg. mpg. (Round your answer to two decimal places. Enter a minus sign if your answer is negative.) Suppose you want to use the estimated regression line to predict the mileage of a bus which weighs around 16,000 kg. Which of the following statements is true? A. According to the OLS regression line, the predicted mileage given the weight of the bus is 186.52 mpg. B. According to the OLS regression line, the predicted mileage given the weight of the bus is 26.32 mpg. C. The estimate from the OLS regression line would be unreliable as the data did not include vehicles weighing more than 4,500 kg. D. The predicted mileage given the weight of the bus will be the same as the average gas mileage in the sample, i.e., 26.13 mpg.