Given the following data,

Month	Data
1	68
2	66
3	70
4	81
5	83

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: 79

B: 86

C: 80

D: 78

E: 88

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

A: 77

B: 77.5

C: 79

D: 67

E: 101

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

A: 8.5

B: 9

C: 7.8

D: 5

E: 4.7

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

The potential answers are:

A: -0.3

B: 3

C: 0.4

D: 4

E: -1.9