Suppose we have the second ordering opportunity when the demand exceeds our initial order. The second order prevents lost sales, because we can simply choose a second order quantity to ensure that all demand is satisfied. However, we need to pay an extra 20 percent premium over the regular price for those T-shirt purchased from the second order. Given this new opportunity, 4. What is the under-stocking cost Cu for the initial ordering decision? 5. What is the over-stocking cost Co for the initial ordering decision? 6. What is the optimal initial order quantity if the demand is given by N(1,000, 2002)