For public information, an outsourced statistics professional was asked to provide an average daily flight cancellations in a particular airport. The statistician sampled 50 operation days and found an average of 32 daily cancellations. From a previous data, the standard deviation of all flight cancellations are 6.5 days. At 99% level of confidence, what is the margin of error to be used for estimation? Supply its positive version rounded off in one (1) decimal place.  Example: 3.6

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