In a study on speed control, it was found that the main reasons for regulations were to make traffic ow more efficient and to minimize the risk of danger. An area that was focused on in the study was the distance required to completely stop a vehicle at various speeds. Use the following table to answer the questions. MPH Braking distance (feet) 20 20 30 45 40 81 50 133 60 205 80 4| 1 Assume MPH is going to be used to predict stopping distance. a. Construct a scatter plot for the data. b. Compute the value of r. c. Is r signicant at a = 0.05? d. Cart braking distance be accurately predicted from MPH? e. Find the regression equation of braking distance to mph. f. Estimate the braking distance for mph by 85