please the differences in values between this question and the solved ones

Problem 4: A Canadian trailer manufacturer produces a variety of small trailers to satisfy demand occurring only between January and June of each year. The manufacturer maintains a very low level of permanent workforce to save costs. Aggregate demand forecast (in units) beyond the regular capacity is: Jan Feb Mar Apr May Jun 465 540 705 1100 1,150 630 The manufacturer can hire temporary workers to meet the above requirements. Each temporary worker can produce 15 units per month. Hiring/training cost is approx. $1,000 per temp worker. Inventory holding cost per trailer per month is $40, charged to average inventory level during a month. Before January, there are no camping trailers on hand, and the manufacturer desires 180 extra units in inventory at the end of June. Any shortage during a period is backordered at the cost of $200 per camping trailer per month. [8 Marks) a) Develop and present a level aggregate plan and calculate the total cost b) Develop and present a chase aggregate plan and calculate the total cost Note: You cannot have fractional workers. The required number of workers should be rounded up. However, consider that workers will only produce the amount that is required, i.e., not above the required output. For example, one worker can produce 15 units and the required production is 100 unit. In this case: The number of workers required: 100/15 = 16.6671 = 7 Output = 100