The weekly demand for a certain product sold in a department store is 300 units. The store is opened 52 weeks a year. Ordering cost per order is $2500, holding rate is 18%, and unit cost is $520. The department store has space large enough to store up to 3-weeks worth of demand. 3.1 What is the order size-when all the information above is considered? a. Order Q b. Impossible to answer. The monthly demand is not given. c. The order size = E0Q/13 weeks). d. The order size = 900. 3.2 Increasing the display floor in the sales department resulted in a reduced storage space that now can store at most 600 units. The department store added safety stock of 50 units that is placed at the same storage as the regular inventory (so both regular inventory and safety stock occupy the 600 units storage space). What will be the minimum annual total cost with safety stock of 50 units included? a. 2500(15600/550) + 93.6*(550/2) +520(15600) +93.6*50 b. 2500(15600/912.87)+93.6* (912.87/2) +520(15600) + 93.6*50 C2500(15600/600) #93(600/2) 4520(15600) d. 93.6 50 3.3 Management noticed that with a safety stock of 50 units, there is still some shortage accumulated per year. This incurs shortage cost of $468 a year. Management decided to increase the safety stock by X units to reduce this shortage cost. If it is not desired to pay for holding the additional X units of safety stock a year more than the mentioned shortage cost, what is the largest value of X that can be held? Recall: Co = 93.6. b. 520/93 CSO d. None of the above 3.4 As mentioned above the safety stock is 50 units. This safety stock was determined based on the rule that safety stock is equal to half the lead time demand. What is the reorder point based on this rule, and how long is the lead time? Recall: weekly demand = 300 units. a. R-150, and L-1/3 of one week b. R-55, and L-1 week c. R=75, and L=1/2 of one week d. Impossible to answer. The lead time is missing