Q6. Consider the inventory graph in figure 1. a. b. What ordering policy is being followed? What is the lead time between when an order is placed and when it is received? C. If average demand is 200units/week, how many units of safety stock are being held by the firm? d. If the lead time calculated in b should double, what order point would be required to maintain the same safety stock level? Units 1200 1000 800 600 Figure 1 400 200 Order Point Weeks 1 2 3 4 5 7 8 9 10 (14 marks) Q7. If a 90% service level is expected, what level of safety stock should be held for the demand pattern shown below? Demand Date Actual Dec-00 104 Forecast 100 Jan-01 96 100 Feb-01 102 100 Mar-011 93 100 Apr-01 921 100 May-01 103 100 Jun-01 91 100 Jul-01 96 100 Aug-01 95 100 Sep-01 94 100 Oct-01 96 100 Nov-01 101 100 Dec-01 102 100 (6 marks)