Given the following data,

Month	Data
1	66
2	68
3	71
4	81
5	79

1. Compute the 3-period moving average forecast for month 6. (It is equal to the 3-period moving average in month 5.) The potential answers are:

A: 78

B: 79

C: 86

D: 77

E: 89

2. Compute the 2-period moving average forecast for month 3. The potential answers are:

A: 76.5

B: 77

C: 77.5

D: 79

E: 67

3. Compute the 2-period moving average forecast for all possible months. Then compute MAD in month 5 for 2-period moving average. The potential answers are:

A: 7.7

B: 8.5

C: 9

D: 6.2

E: 5

4. Compute the Tracking-Signal in month 5 for 2-period moving average.

The potential answers are:

A: 0.9

B: -0.3

C: 3

D: 0.4

E: 4