Korner Hardware manager Emerson Jones is interested in determining how many na

Korner Hardware manager Emerson Jones is interested in determining how many nativity scenes to order for the 12-day holiday season. Past experience indicates
that demand for these nativity scenes averages nine per day during this 12-day period with a standard deviation of three per day. Demand is approximately
normal. Emerson purchases the nativity scenes for $24 per unit and sells them for $48 each during the season. After Christmas they are marked down as sale
items for $16 each.

How many units should Emerson order for the coming holiday season?