Consider the following time series data.

Month

1

2

3

4

5

6

7

Value

24

13

20

12

19

23

15

Compute MSE using the average of the last two values as the forecast for the next period. Which one of the following options shows the MSE?

Select one: a. 24.25 b. 24.50 c. 25.75 d. 24.00 e. 25.00 f. 25.50 g. 24.75