Demand for a product is approximately normal, averaging $8$ units per day

with a standard deviation of $2$ unit per day. Lead time for this product is

approximately normal, averaging $10$ days with a standard deviation of $3$

days.

A$.$ What safety stock level provides a service level of $98\mathrm{.}5\%?$

B$.$ What reorder point provides a service level of $98\mathrm{.}5\%?$