I/C NUMBER : 941128-04-5238
CLASS : PU/13/A4
TEACHER’S NAME : PN . CHAH HUA LIN
INTRODUCTION
As an inventory control manager at hypermarket XYZ, you need to ensure a good stock of a health supplement drink under the name JUSMANGGIS. Customers are willing to wait for the drink to arrive at the hypermarket since the hypermarket sells the drink for 12.5 percent less than its competitors.
The demand data shows that the customers of hypermarket XYZ purchase an average of 2400 bottles of JUSMANGGIS per month (30 days). The supplier charges the hypermarket a wholesale price of RM5.40 per bottle. The annual holding cost (based on 360 days) for the inventory is 10 percent of the capital tied up in the inventory of JUSMANGGIS. It takes about 20 minutes to place each order. Your salary and benefits add up to RM112.50 per hour. 1. Create an optimal inventory policy where no planned shortages are allowed and the lead time is zero. The optimal inventory policy shold include a) a list of assumptions, b) the quantity of an order each time, c) the cycle time, d) the numbers of orders per year, e) a graph of inventory level as a function of time. 2. a) If a hypermarket XYZ has to wait 8 days after it places an order to receive the shipment, determine i. the number of bottles of JUSMANGGIS that should be ordered each time, ii. the cycle time,\ iii. the numbers of orders per year, iv. the reorder point.
b) If hypermarket XYZ has to wait 2 days longer than the cycle time as in part 1 after it places an order to receive the shipment, determine the reorder point. 3. Suppose that you change your policy in part 1 such that planned shortages are allowed and the lead time is 15 days. Customers are willing to wait to purchase the JUSMANGGIS at hypermarket XYZ due to its low price. They would, however, become unhappy about the prospect of having to return for the JUSMANGGIS. a) If the