SunCar distributes parts for American cars in Belgium. Batteries are a commonly requested item. The lead time to obtain car batteries is two months and the average demand is 100 per month. Lead time demand is normally distributed with a standard deviation of 10 units. Order cost is $75 and holding cost is $10 per year per battery.
The safety stock necessary to maintain a 95% service level is closest to
19
10
23
33
The reorder point including safety stock is closest to
223
100
123
73
The total inventory cost including safety stock is closest to
$1570
$ 178
$ 900
$1340