Consider a periodic review​ system, where orders are placed every 21 days. The firm strives to provide a 94.41% cycle service level. Demand averages 415 units per​ day, and the standard deviation of demand per day is 107 units. Lead time is 10 days​ (round Z-values, standard deviations to two decimal​ places).   a. How many units of safety stock should be​ held?   units​ (round your response to the nearest​ integer).   b. What should the target inventory level​ (order-up-to level)​ be?   units​ (round your response to the nearest​ integer).   c. Suppose that it is time to review the item. There are 158 units in​ inventory, and there is an outstanding backorder for 472 units. An order for 113 units is on the way. How many units should be ordered​ now?   units​ (round your response to the nearest​ integer).

Consider pereiod review system, where orders are placed every 20 days. The firm strives to provide a 94.6% cycle service level. Demand averages 420 units per day, and the standard deviation of demand per day is 106 units. Lead time is 11 days.  a. How many units of safety stock should be held? b. What should the target inventory level (order-up-to level) be? c. Suppose that it is time to review the item. There are 160 units in inventory, and there is an outstandin back order for 400 units. An order for 128 units is on the way, how many units should be ordered now?

A hospital orders surgical supplies using a fixed order interval system. Suppose that just prior to ordering, a check of rolls of gauze bandages shows that there are 40 currently on hand. Suppose also that these rolls have a daily usage that is approximately normal with a mean of 9 rolls and a standard deviation of 4 rolls. Lead time is 4 days and the desired service level is 98 percent. The order interval is 12 days. What's the expected demand during the order interval and lead time? 33 rolls 53 rolls 137 rolls 144 rolls What would have been the desired service level if an order quantity of 142 rolls were placed when the stock on hand is 30 rolls? (Assume: amount on order and backorder is zero). 95% 96% 97% 99% I WILL RATE YOU HELPFUL. PLEASE HAVE MERCY AND ANSWER ALL THE QUESTIONS ABOVE. THANK YOU!

A company begins a review of ordering policies for its continuous review system by checking the current policies for a sample of SKUS Following are the characteristics of one tem Demand (D)=85 units/week (Assume 52 weeks per year) Ordening and setup cost (S) $75/order Holding cost (H)-$16/und/year Lead time (L) 5 week(s) Standard deviation of weekly demand 22 units Cycle-service lovel-90 percent >EOQ-207 units Using the above information, develop the best policies for a periodic review system Refer to the standard normal table for z-values a. What value of P gives the same approximate number of orders per year as the EOQ? weeks (Enter your response rounded to the nearest whole number) b. To provide a 98 percent cycle-service level, the average safety stock is To provide a 98 percent cycle-service level, the target inventory level is unts (Enter your response rounded to the nearest whole number) units (Enter your response rounded to the nearest whole number)