Refer to the case study Scientific Glass, Inc.: Inventory Management (2011) by Wheelwright and Schmidt. This case is about evaluating inventory options and network options for a scientific glass manufacturer and distributor. The company uses a periodic review inventory control process. For purposes of this assignment, you will work primarily with the two representative products whose characteristics are shown in Exhibit 3. Respond to the following questions: 1) Your first task is to determine how much (inventory) costs will increase if Scientific Glass chooses to implement (and achieve) a 99% service level vs. the optimal service level that overage and underage costs dictate. To do that, you need to think about: a) The average lot size that will drive each products cycle stock b) The uncertainty as measured by standard deviation of demand over review time and lead time for each product. Note that you have to have safety stock to cover the uncertainty over the combined times. c) Combining inventory costs associated with both cycle stock and safety stock. (Hint: Think back to EOQ, which only deals with cycle stock).