Considor a continuous teview inventory system. Deenand is normally distribuled with an average of 28,000 per month and a monthy standard deviation of 5100 units. Lead time is 6 weeks (assume four weeks per month) (round Z-values. standard deviations to two decimat places) If the firm desires a(n) 67% cycle service leves, is should hold unis of saloty stock (pound your response to the nearest impeger)