Thomas' Bike Shop stocks a high volume item that has a normally distributed demand during lead time. The average daily demand is 75 units, the lead time 4 days, and the standard deviation of daily demand 25. (Note: 25 is the standard deviation of daily demand, not during the lead time). a . How much safety stock provides a 85% service level to Thomas? [5 points] bWhat should the reorder point be? 5 points