QUESTION 9 Sp Information for problems 9-12. The Rugged Jeans Company uses on average 20 rolls of denim dally in its manufacturing process. The amount of denim used is normally distributed with a standard deviation of 2 rolls. The company orders the denim from its supplier every 7 days on Monday morning and it takes 2 days to receive the order, One Monday morning, the company has 5 rolls of denim in its inventory Rugged Jeans would like to limit the probability of a stockout to 5 percent What type of inventory model is suitable for this problem? Basic EOQ model Economic Production Quantity (EPQI model (Q.R) model with random demand. Periodic Review model QUESTION 10 How many rolls of denim should be ordered at this time? 187 rolls 189 rolls 185 rolls 183 rolls QUESTION 11 What is the safety stock for the denim used? 8 rolls 10 rolls 12 rolls 14 rolls QUESTION 12 If instead the store wants to reduce the probability of a stockout to 1 percent, how many rolls of denim should be ordered? 187 rolls 189 rolls 185 rolls 183 rolls