The U.S. Census Bureau's American Community Survey reported the percentage of children under 18 years of age who had lived below the poverty level during the previous 12 months (U.S. Census Bureau website, August 2008). The region of the country, Northeast (NE), Southeast (SE), Midwest (MW), Southwest (SW), and West (W) and the percentage of children under 18 who had lived below the poverty level are shown for each state. Download the file PovertyLevel.csv and do any necessary data transformation (like sorting) to answer the following questions. 1. What is the median poverty level percentage for the 50 states (to 2 decimals)? 2. What are the first and third quartiles (to 1 decimal)? 3. Identify the states in the lower quartile. What region or regions are represented most in the lower quartile? O Northeast (NE) Southeast (SE) OMidwest (MW) OSouthwest (SW) OWest (W)