A production manager needs to develop a production schedule to meet the following demand: period: 1 2 3 4 5 6 demand: 600 600 800 1000 1200 600 Productions costs are as follows: (a) regular time: $3 per unit. (b) over-time: $5 per unit. (C) subcontract: $7 per unit. (d) Inventory carrying cost = $2 per unit per period (e) Back-order costs = $5 per unit per period. You have to meet all the demand. You start with no inventory at the beginning of the first period, and end with no inventory at the end of the sixth period. Schedule C: Suppose the regular rate of production per period is 700. However, you are allowed to buy 200 units from a subcontractor during each of the periods 3, 4, and 5. Develop a production schedule to meet the demand. (13) The average inventory for the second period is: (a) 50 (b) 100 (c) 150 (d) 200 (e) none of the above (14) The average inventory for the fourth period is: (a) 50 (b) 100 (c) 150 (d) 200 (e) none of the above (15) The inventory at the beginning of the fifth period is: (a) 100 (b) 200 (c) 250 (d) 300 (e) None of the above (16) The total cost of buying items from the subcontractor for the all the six periods is: (a) $5400 (b) $2800 (c) $4200 (d) $3600 (e) None of the above (17) The backlog for the fifth period is: (a) 50 (b) 100 (c) 150 (d) 200 (e) none of the above (18) The total cost of meeting the demand is: (a) $17,400 (b) $18,900 (c) $19,600 (d) $19,200 (e) none of the above