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: Year 1 2 3 4 5 Mileage 3 comma 0003,000 3 comma 9503,950 3 comma 5003,500 3 comma 8503,850 3 comma 7003,700 a) Using a 2-year moving average, the forecast for year 6 = 37753775 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 = 58.358.3 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 0.400.40 and 0.600.60 (the weight of 0.600.60 is for the most recent period) = 37603760 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 0.400.40 and 0.600.60 = 83.383.3 miles (round your response to one decimal place).