1.Compute MSE, MAD, and MAPE (Equations 9.1 to 9.3) for the following customer satisfaction data:

Month Customer Satisfaction Score Forecast

1 88.4 84.0

2 87.2 86.6

3 90.1 89.1

4 92.7 88.7

5 91.5 89.9

2. A manufacturer uses a moving average to predict how many replacement parts for Part #8119 they should produce per month. Past demand is as follows

Month Demand (units)

1 302

2 288

3 325

4 401

5 430

6 456

What are the forecasts for month seven using two-, four-, and six-period moving averages? What can we learn from the answers