Reorder point of a certain item at The Carya Glabra store is 1 , 0 0 0 units. Daily demand is normally distributed with a mean of 1 2 0 units and a standard deviation of 1 2 units. Lead time is also normally distributed, averaging at seven days with a standard deviation of one day. Calculate the stockout risk. ( Hint: First find the z - value for the reorder point. )