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Mathematics, 11.02.2021 21:50 pierrezonra

A transportation strategist wanted to compare the traffic congestion levels across four continents: Asia, Europe, North America, and South America. The file Congestion Level contains congestion level, defined as the increase (%) in overall travel time when compared to a free flow situation (an uncongested situation) for 10 cities in each continent. Required:
At the 0.05 level of significance, is there evidence of a difference in the median congestion levels across continents?

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A transportation strategist wanted to compare the traffic congestion levels across four continents:...
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