1. Epsilan Court Co. has recorded the numbers of customer complaints each month:

Month, t 1 2 3 4 5 6 7

Complaints, Yt 135 130 125 135 115 80 105

Use a simple moving average to forecast the number of complaints for the 8^th month and find the value of MSE. (Use n = 3)

2. Same as problem 1, but use weighted moving averaging and weighting factors: 0.2, 0.3 and 0.5.

3. Same as problem 1, but use exponential averaging and a = 0.3.