Z table for calculation is below

Glven the tollowlng Information: Expected demand during a lead tlme = 620 kg Standard devlatlon ot demand durlng a lead time = 60 kg Demand durlng a lead time Is dlstrlbuted Normally Acceptable stockout rlsk during a lead tlme = 1 percent Reter z-values table a. What amount of safety stock Is appropriate? (Round the flnal answer to the nearest whole number.) Safety stock kg b. At what level of Inventory should ttnls Item be reordered? ROP kg