Weekly income for an online greeting card business, is provided below.Determine, on the basis of minimizing the mean square error, whether a three-period or four-period simple moving average gives a better forecast.

Week Income

1 980

2 1040

3 1100

4 1020

5 860

6 960

7 1080

8 1360

9 1380

10 1100

Group of answer choices

There is not enough information to determine the answer

The four-period simple moving averages gives a better forecast because it has the smallest MSE

Both the four-period & three-period simple moving averages have the same forecast accuracy in terms of their MSE

The three-period simple moving average gives a better forecast because it has the smallest MSE