UA Hamburger Hamlet (UAHH) places a daily order for its high- volume items (hamburger patties, buns, milk, and so on). UAHH counts its current inventory on hand once per day and phones in its order for delivery 24 hours later. Determine the number of hamburgers UAHH should order for the following conditions:

Average daily demand............... 600

Standard deviation of demand............100

Desired service probability..............99%

Hamburger inventory ...............800