Fuel efficiency of cars depends on several factors, such as weight and engine size or the number of cylinders. In addition, note that fuel efficiency is in fact not a single concept in itself; most reports about fuel economy distinguish between City MPG, average miles per gallon (MPG) when driving in urban areas, and Highway MPG, average miles per gallon when driving on the highway. In addition to these efficiency data, the given data set includes the Model of the car, the number of Cylinders of its engine, the Engine size in liters, the Weight of the car in pounds, the car's MSRP or Manufacturer's Suggested Retail Price, the Type of the car (Sedan, Minivan, Wagon, SUV), and the Country from which it originates. StatCrunch Data Setopens in a new tab Question content area bottom Part 1 Although both outliers and non-linearity suggest that the linear regression model may not be the best option, we will estimate it as our base model. Find the linear regression model of City Mpg explained by Eng Size. Part 2 How much does fuel efficiency, on average, change, for an increase in Eng Size of one liter? enter your response here (Round to two decimal places as needed.)