jadawada223

11.02.2021 • 

Mathematics

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?

Ответ:

Mordred2143

16.11.2020

Mathematics

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3(-4x+5)=12 (Divide by 3 on both sides)
-4x+5=4       (Add -5 to both sides)
-4x=-1          (Divide by -4 on both sides)
x=1/4

Check:
3(-4(1/4)+5)=12
3(-1+5)=12
3(4)=12
So, your final answer is x=1/4

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