This extra$-$credit hw is optional. It is only for those students who are interested in earning extra points to increase their grades.

Please show your solution detail in word file $($to show your answers to questions asked$)$ and drop into the Canvas dropbox by May $9.$

A large hospital uses a certain intravenous solution that it maintains in inventory. Pertinent data about this item are as follows:

a$365$ days per year

bnormally distributed

${?}^c$ During the lead time or during the order interval plus leadtime, depending on the inventory control design

What are optimal order quantity and reorder point $($ROP$)?$