Problem 4 (20 points) a. (10 points). The below company will begin its roll-up forecast anticipating a need for 35 A1 units and 24 A2 units at a cost of $13 per unit and $20 per unit, respectively. In addition, they anticipate a need for 25 B1 units and 35 B2 units at a cost of $18 per unit and $11 per unit respectively. Complete the roll-up pyramid forecasting technique for the company. (Fill all the blanks). Show all calculations. Roll-up forecast $ A 00 B Product family forecasts Dollars Units di di A. A2 BI B2 Individual product forecasts Dollars Units $ di S S AZ A. Unit Costs B 2 S B $ $ b. (10 points). The management of the company asked to reconsider the rolled-up forecast, and they agreed on a revised total management forecast of $1,947. Your task is to prepare a force-down forecast. (Fill all the blanks). Show all calculations. Management forecast Roll-up forecast Management forecast Roll-up forecast D B Product family forecasts Dollars Units di A. A2 Bi B2 Individual product forecasts Dollars Units di I A A2 B2 Unit Costs B $