The given data suggests an association between fuel efficiency and engine displacement. The regression model defined is: Mpg = 36.25 – 3.867 Engine size. Residuals are determined by the difference between actual and predicted values. Residual = y - ŷ, where y signifies the actual value and ŷ denotes the predicted value. A positive residual indicates the vehicle's true mileage surpasses what was anticipated.
The price coefficient (b) in the linear demand function is calculated as -0.10, derived from the elasticity of demand formula. By substituting known quantities into the equation, we find that the slope b equals -0.10.
