The walking speeds of random travelers at Los Angeles International Airport and Dallas/Fort Worth International Airport are summarized below. Direction of Travels Departure Arrival Mean speed (ft/min) 262 268 Standard deviation (ft/min) 52 36 Sample size 36 30 Do people walk faster in the airport when they are departing (getting on a plane) or when they are arriving (getting off a plane)? What is the critical value, test statistics, pvalue, and the decision for this hypothesis test?

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