3. The KSK Company produces a line of backpacks. The operations manager, Matt Zack, is interested in using alternative aggregate plans. Use the following data to solve the following parts. a) Develop a chase plan by changing the size of the workforce. Subcontracting will not be used. Demand must be met exactly in each month. (20 pts.) b) Develop a level aggregate plan. Subcontracting is used if in-house production is not enough. Based on the total costs in parts (a) and (b), which plan do you suggest? (20 pts.) 3. The KSK Company produces a line of backpacks. The operations manager, Matt Zack, is interested in using alternative aggregate plans. Use the following data to solve the following parts. a) Develop a chase plan by changing the size of the workforce. Subcontracting will not be used. Demand must be met exactly in each month. (20 pts.) b) Develop a level aggregate plan. Subcontracting is used if in-house production is not enough. Based on the total costs in parts (a) and (b), which plan do you suggest? (20 pts.)