Question $14$

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$2\mathrm{.}18$

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A company has recorded the last six days of daily demand on a single product they sell. Those values are $49,49,49,49,49$ and $49.$ The time from when an order is placed to when it arrives at the company from its vendor is $6$ days. Assuming the basic fixed$-$order quantity inventory model fits this situation, what will be the standard deviation of demand during lead time?

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