A conduit pipe company wants to implement a weekly review system for its products, considering that the best seller is the 1-inch pipe. This tube has a demand of 400,000 sections of 3 meters per year. They know in advance that during Holy Week, Easter Week, Christmas Week and New Year's Week they don't supply anything, and this follows a normal distribution with a standard deviation of 3880 sections of 1” pipe. The supplier offers a delivery time of 9 days; there is an order in transit for 40,000 sections and they currently have a stock of 1,400 sections of tube. What is the average inventory? What is the safety inventory? What is the maximum inventory? What is the quantity?