The Carbondale Hospital is considering the purchase of ambulance. The decision will rest partly pn the anticipated mileage to be driven next year. The miles driven during the past 5 years are as follows:

Year	Mileage
1	3050
2	4000
3	3450
4	3750
5	3800

a) Using a 2 year moving average, the forecast for year 6=______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 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) (Hint: You will have only 3 years of matched data.) d) Using exponential smoothing with =0.20 and the forecast for year 1 being 3,050, the forecast for year 6=_____miles(round your response to the nearest whole number)