Korner Hardware manager Emerson Jones is interested in determining how many Nativity Scenes to order for the ten-day holiday season. Past experience indicates that demand for these Nativity Scenes average 8 per day during this ten-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 Tom order for the coming holiday season?