a) Calculate the highway fuel efficiency for a vehicle this has 3.0 engine displacement, 6 cyclinders, 6 gears and is carline class 3 using your preferred simple regression model from part 5. (Use only one of the above noted inputs in your preferred model). b) Include the point estimate and the prediction interval for that estimate

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4