- OL). Talle 1 Thyond PROBLEMS 1. Sales of a new CD at a store for the last 4 weeks are shown below. Week Sales 1 112 2 105 3 125 4 118 a. b. c. Find a 3 period moving average forecast for the next week. Find a 4 period moving average forecast for the next week. Actual sales for week 5 were 105 units. What would be the 3- and 4-period moving average forecasts for week 6? 2. Ed Rogers owns an appliance store. Sales data on a particular model of a DVD player fort! months are shown below along with the results of two different forecasting models that we Calae Forecast 1 Forecast 2 1