Respond to each of the items using the following time series data.

Period	Demand
1	20
2	46
3	20
4	9
5	17
6	12
7	19
8	34
9	39
10	4
11	30
12	23
13	10
14	27

Click here for the Excel Data File b.Compute all possible forecasts using exponential smoothing with a smoothing coefficient () of 0.3.(Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) c.Compute all possible forecasts using exponential smoothing with a smoothing coefficient () of 0.7.(Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) d.Compute the MADs for each forecast model.(Round your answers to 3 decimal places.) e.Which forecast model would you choose? Why?