Inputs
Average demand per unit time R =	280
Lead time,L=	2
SD of demand per unit time sR =	180
Order quantity Q=	1100
Reorder Point ROP	700
Distribution of demand during replenishment lead time
Mean demand during lead time RL =	560
SD of demand during lead time sL =	254.56
Outputs
Safety Inventory ss =	140
Cycle Service Level CSL =	70.88%
Expected shortage per replenishment cycle ESC =	46.537
Fill Rate fr =	95.77%

After further analysis, WALMART determines that the supply lead time from EPSON is actually normally distributed, with a mean of 2 weeks and a standard deviation of 1.5 weeks.How much safety inventory should WALMART carry if it wants to provide a CSL of 95 percent? What is the expected shortage per replenishment cycle (ESC)?What is the fill rate (fr)? What impact does the variability in the supply lead time have on the safety stock? What if the variability in the supply lead time were reduced to zero? What would the safety stock be for a desired CSL of 95 percent?