Compute a three-period moving average forecast given demand for shopping carts for the last five periods. (Round all youdanswers to two decimal points.) Period Demand 1 48 2 44 3 50 4 44 5 53 Answer is complete but not entirely correct. Forecast Period 4 40.67 Forecast Period 5 Forecast Period 6 42.67 49.33 If actual demand in period 6 turns out to be 48, the moving average forecast for period 7 would be Answer is complete but not entirely correct. Forecast Period 7 50.33