Given this information:

Lead$-$time demand $=620$ pounds

Standard deviation of lead time demand $=49$ pounds $($Assume normality.$)$

Acceptable stockout risk during lead time $=5$ percent

Use Table.

a$.$ What amount of safety stock is appropriate? $($Round your answer to the nearest whole number.$)$

b$.$ How much of this item should be reordered? $($Round your answer to the nearest whole number.$)$

c$.$ What risk of stockout would result from a decision not to have any safety stock?