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 0503,050 3 comma 9503,950 3 comma 5003,500 3 comma 8003,800 3 comma 7003,700 a) using a 2-year moving average, the forecast for year 6 = 37503750 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 = 41.6741.67 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 0.450.45 and 0.550.55 (the weight of 0.550.55 is for the most recent period) = nothing miles (round your response to the nearest whole number).