2. Use the data below to develop a Chase Plan for 6 months. Overtime and subcontracting are not options. Demand is in units. Enter your answers for production and the number of workers, hires, and layoffs. Each worker can make 100 units per month. At the beginning of Month 1, there are 25 workers. The hiring cost for a worker is $400, and the layoff cost is $2,000. The inventory cost is $12 per unit per month, and the stockout cost is $45 per unit. The beginning inventory for Month 1 is zero. In each month, production should equal demand. (10 points) Month Demand Production 1 2,500 2 3,000 3 3,500 4 4,500 5 4,000 6 3,500 Total 21,000 Beginning Inventory 0 Ending Inventory Stockouts Workers Hires Layoffs 3. What is the total cost of the plan in Problem 22 Include the costs of holding inventory, stockouts, hiring, and layoffs. (4 points) Develop a Level plan for this data. The total production for 6 months should be 21,000 units. At the beginning of Month 1, there are 25 workers. The number of units produced in a month should be the same for all 6 months. Determine the number of workers, hires, and layoffs accordingly. Use the remaining data from Problem 1. Enter your answers in the table below. (10 points) Month Demand Production 1 2,500 2 3,000 3 3,500 4 4,500 5 4.000 6 3,500 Total 21,000 | | Beginning Inventory Ending Inventory Stockouts Workers Hires Layoffs 5. What is the total cost of the plan in Problem 42 Include the costs of holding inventory, stockouts, hiring, and layoffs. (4 points) 6. Which plan should be used? Why? (2 points) 1. An activity-on-node diagram for a project is given below. Activity names and durations are shown above each activity box. Times are in weeks. (18 points for entire problem) B, 8 C, 4 D, 7 A, 4 H, 2 a) Compute ES, EF, LS and LF for each activity. Put each number in the right place in the diagram. (12 points) The format is ES EF LS LF b) Compute slack for each activity. You can make a slack table or write the slack below each activity. (4 points) c) What is the critical path? (1 point) d) What is the project duration? (1 point)