Question Completion Status: What is the optimal Order Quantity Q* (EOQ) for the following situation? Annual Demand = 586 Order Cost = $30 Carrying Cost per Unit = 13 Unit Cost = $60 QUESTION 15 Based on the Sales Report below, what was the standard deviation of demand (o) for this sales period? Jan Feb Mar Apr May Jun 145 155 265 190 295 265 Hint Use Excel to quickly find the standard deviation