The demand for frozen yogurt at the Garland Ice Cream and Dairy store can be approximated by a normal distribution with a mean of 60 gallons per day and a standard deviation of 8 gallons per day. The lead time from the supplier is a constant 5 days. If the store replenishes its supply of frozen yogurt when the inventory level drops to 240 gallons, what is the safety stock, and how much protection against stockouts does it provide?