Q. The demand of the winter jacket varies over the week (7 days). The average demand per week is 50 items. Given that the retailer's order lead time is 2 days, the average lead time demand is 16 items and the standard deviation during lead time is 3 items. Acceptable stock-out risk during is considered 4% (96% service level).

i. Illustrate what amount of safety stock is appropriate?

ii. When should this item be reordered (ROP)?

Assuming the retailer's order interval is one week and lead time is same as 2 days. The average on-hand inventory is 5 items at the end of each week.

iii. Decide the order quantities using fixed order interval model?

iv. Decide the reorder point (ROP) using variable demand model?