Compute forecasts for month 6 using exponential smoothing

Question

The monthly demand for batteries at Yazici, Inc., were as follows:

Month          Sales

1                      20

2                      13

3                      16

4                      17

5                      20

a) Compute forecasts for month 6 using exponential smoothing, with an initial forecast for month 1 of 25, Use α= .1 and, α= .5.

b) Using MSE, determine which forecast is more accurate.