An automobile manufacturer would like to know the gas mileage of a car (y in miles per gallon) based on four predictor variables:
= horsepower (ft-lb),
= torque (ft-lb),
= displacement (cubic inches), and
= weight (lbs). Suppose the following equation does indeed describe the true relationship.
What is the gas mileage for a car with 160 ft-lbs of horsepower, 250 ft-lbs of torque, 350 cubic inches of displacement, and weighs 3900 pounds?
______________ miles/gallon
What is the gas mileage for a car with 210 ft-lbs of horsepower, 330 ft-lbs of torque, 440 cubic inches of displacement, and weighs 4210 pounds?
______________ miles/gallon
How would you interpret the value of
?
________________________________________________________
How would you interpret the value of
?
________________________________________________________
How would you interpret the value of
?
________________________________________________________
How would you interpret the value of
?
________________________________________________________
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