An ophthalmologist’s office operates 52 weeks per year, 6 days a week. It purchases disposable contact lenses for $11.70 per pair and sells for $50. The demand is 90 pairs per week. Order cost is $54 per order. Annual interest rate is 27%. Lead-time is 3 weeks. Standard deviation of weekly demand is 15 pairs. Given that 98% service-level. Clearly identify different types of stocks: cycle, safety and pipeline.
a. Find a (Q, r) policy for this situation
c. Find average service level (fill rate) of the policy (a)
d. Find average backorder level of the policy (a)
e. Find average inventory level of the policy (a)
