The table below shows actual sales for your company for the last six months ("month" = "period"). You are interested in forecasting sales for the upcoming month (period 7).
Period Sales
1. 750
2. 820
3. 600
4. 850
5 .900
6. 700
a. Using a 3-month moving average, what would be your prediction for period 7?
b. Using the exponential smoothing forecast method, with a smoothing factor of 0.6, what is your prediction for period 7?