Month	Sales
January	20
February	21
March	15
April	14
May	13
June	16
July	17
August	18
September	20
October	20
November	21
December	23

The monthly sales for Yazici Batteries, Inc., were as shown in the above table.

1. Forecast January sales of the coming year using each of the following:
   1. Nave method
   2. 4-mth moving average
   3. Exponential smoothing using an alpha = 0.25
   4. A trend projection model
2. With the data given, which method would you recommend for this data set and why?
3. Discuss the trend projection model that you obtained for this data set.