Using EOQ quantity in $14,$ the total annual inventory holding cost plus annual ordering cost is about,

a$.$ $$1,000$

b$.$ $$1,414$

c$.$ $$2,000$

d$.$ $$2,600$

Using EOQ quantity in $14,$ the company needs to place a new order about,

a$.$ Once every week

b$.$ Once every two weeks

c$.$ Once every $3$ weeks

d$.$ Once every ten weeks

Suppose the company is using a continuous review system. Assume demand during the lead time is distributed as normal with the mean of $400$ units and the standard deviation of $86$ units. For a cycle service level of $99\%,$ the reorder point quantity is about,

a$.300$ units

b$.600$ units

c$.400$ units