Below is a table containing data on product demand for the most recent five months along with the forecasts that had been made for those 5 previous months. Use the exponential smoothing method to forecast the number of sales to expect next month. Use the following value of alpha: 0.2.

Month	Demand	Forecast
1	308	349.2
2	388	340.9
3	344	350.3
4	400	349.1
5	341	359.3

Part 2

Below is a table containing data on product demand for the most recent three months along with the forecasts that had been made for those three previous months. Calculate the MSE.

Month	Demand	Forecast
1	308	310
2	388	390
3	344	342