The Carbondale Hospital is considering the purchase of a new ambulance. The decision will rest partly on the anticipated mileage to be driven next year. The miles driven during the past 5 years are as follows: 1 5 Year Mileage 2 4,050 3 3,450 4 3,850 3,000 3,800 a) Using a 2-year moving average, the forecast for year 6 = 3825 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 = 108.3 miles (round your response to one decimal place). (Hint: You will have only 3 years of matched data.) c) The forecast for year 6 using a weighted 2-year moving average with weights of 0.45 and 0.55 (the weight of 0.55 is for the most recent period) = miles (round your response to the nearest whole number). The MAD for the forecast developed using a weighted 2-year moving average with weights of 0.45 and 0.55 = 3823 miles (round your response to one decimal place). (Hint: You will have only 3 years of matched data.) d) Using exponential smoothing with a = 0.30 and the forecast for year 1 being 3,000, the forecast for year 6 = 163 miles (round your response to the nearest whole number)