Consider a continuous review inventory system. Demand is normally distributed with an average of$28,000$ per month and a monthly standard deviation of $4900$ units. Lead time is $2$ weeks$($assume four weeks per$$ month$)($round$$ Z$-$values, standard deviations to two decimal$$ places$).$ If the firm desires$$ a$($n$)86\%$ cycle service$$ level, it should hold

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units of safety stock$($round your response to the nearest$$ integer$).$