The need for safety stocks can be reduced by an operations strategy which: increases lead time. increases lead time

 Question 1
The need for safety stocks can be reduced by an operations strategy which:
increases lead time.
increases lead time variability.
increases lot sizes.
decreases ordering costs.
decreases lead time variability.
Question 2
The materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. She knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to carry a kilogram of resin in inventory. She also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four days. At what point should resin be reordered?
0 kilograms remaining
50 kilograms remaining
200 kilograms remaining
400 kilograms remaining
500 kilograms remaining
Question 3
Which of the following interactions with vendors would potentially lead to inventory reductions?
reduced lead times
increased safety stock
less frequent purchases