Question: The manager the protoco service station wants to forecast the demand for unleaded gasoline next month so that the proper number of gallons can be ordered from the distributor. The owner has accumulated the following data on demand for unleaded gasoline from sales during the past 10 month:

a. Compute an exponentially smoothed forecast, using an α value of .30.

b. Compute an adjusted exponentially smoothed forecast (with α =.30 a = .20)

c. Compare the two forecast by using MAPD and indicate which seems to be more accurate.