Luke is in charge of ordering muffines for a bakery The demand for muffins is normally distributed with an average daily demand of 50 muffins and a standard deviation of 7 muffins. Currently, it takes 5 days between when Luke places an order for muffins and when the order is received at the bakery. Currently, Luke orders muffins when there are 274 muffins left in stock. What is the average demand during lead time