This exercise contains only parts b,c, and d. b) Using the least-squares regression method, the equation for forecasting is (round your responses to four decimal places): Y=+x a) Using a 2-year moving average, the forecast for year 6=3750 miles (round your response to the nearest whole number). b) If a 2-year moving average is used to make the forecast, the MAD based on this = miles (round your response to one decimal place). (Hint: You will have only 3 years of matched date