Question: Korner Hardware manager Emerson Jones is interested in determining how many nativity scenes to order for the 10-day holiday season. Past experience indicates that demand for these nativity scenes averages eight per day during this 10-day period, with a standard deviation of two per day. Demand is approximately normal. Emerson purchases the nativity scenes for $15 per unit and sells them for $30 each during the season. After Christmas, they are marked down as sale items for $10 each. How many should Emerson order for the coming holiday season?