7.

Identify the appropriate inventory model to obtain the optimal lot size for the given problem description:

Rick Jones is chairman of this year’s Walk for Diabetes event. Each year, the organizers of the event typically have commemorative T-shirts available for purchase by the entrants in the walk. Rick needs to order the shirts well in advance of the actual event. Based on past walks, the organizers have determined that the demand for T-shirts is normally distributed with a mean of 100