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Part $1$

Southeastern Bell stocks a certain switch connector at its central warehouse for supplying field service offices. The yearly demand for these connectors is $15$ comma $700$ units. Southeastern estimates its annual holding cost for this item to be $$$$25$ per unit. The cost to place and process an order from the supplier is $$$$72.$ The company operates $300$ days per$$ year, and the lead time to receive an order from the supplier is $2$ working days.Based on available information, lead time demand for PC thumb drives averages Based on available information, lead time demand for PC thumb drives averages $46$ units $($normally distributed$),$ with a standard deviation of $4$ drives. Management wants an $85\%$ service level. Refer to the a$)$ What value of Z should be applied? b$)$ How many drives should be carried as safety stock? $\backslash$geoquad units $($round your response to the nearest whole number$).$ c$)$ What is the appropriate reorder point? units $($round your response to the nearest whole number$).$