Evaluate the current level of safety stock. Comment in general on their approach to calculating and maintaining safety stocks. Calculate the safety...

1. Evaluate the current level of safety stock. Comment in general on their approach to calculating and maintaining safety stocks.2. Calculate the safety stock for the ball valve (34-850).Use the following equation to evaluation safety stock:,Use a customer service level of .99, which corresponds to a z value of 2.33. Also, assume that the monthly standard deviation is 550, and that there are 25 working days in a month.3. Complete the MRP table for the selected components in case Exhibit 8.4. As Gerpheide, what changes would you recommend?