Introduction:
The goal of this lab exercise was to experience the process of producing a map from data collected from the US Census Bureau using the methods we have learned thus far. While the first portion of the overall map was created using directions provided by our professor the second portion was practice for us to create one ourselves.
Methods:
First, we needed to download data via the US Census Bureau website. After searching through the multitude of data they offer, we needed to download it from the website and unzip the files into a separate folder. Within the zip file was a shape file of the Wisconsin counties as well as other data regarding the counties. Once the files were unzipped we could pull the data into excel and review it before bringing it into ArcGIS. In order to have the data represented in a way that could be used geographically, the downloaded data from the US Census Bureau was joined with the table which was imported from Excel. Once this was complete, we can use the quantities: graduated colors method of symbology to represent our data on the map of the state of Wisconsin and its counties.
The next step was to complete this process again using a set of data that I chose individually. The process was the same, however instead of looking at population of the counties I looked at the percent of the population of African Americans in each
Results:
As can be seen by analyzing the maps above, there is no distinct correlation between the population per county and the percent of that county's population which is African American. While some counties such as Milwaukee County have some similarities because there is a very high population in general and also a high percentage of African Americans. Both these maps could stand alone as they display different sets of data. The map on the left represents the populations for each county in the state of Wisconsin while the map on the right shows the percent of African Americans within the population of each county.
Sources:
U.S. Census Bureau. (n.d.). American FactFinder. Retrieved from http://factfinder2.census.gov/faces/nav/jsf/pages/searchresults.xhtml?refresh=t
Results:
As can be seen by analyzing the maps above, there is no distinct correlation between the population per county and the percent of that county's population which is African American. While some counties such as Milwaukee County have some similarities because there is a very high population in general and also a high percentage of African Americans. Both these maps could stand alone as they display different sets of data. The map on the left represents the populations for each county in the state of Wisconsin while the map on the right shows the percent of African Americans within the population of each county.
Sources:
U.S. Census Bureau. (n.d.). American FactFinder. Retrieved from http://factfinder2.census.gov/faces/nav/jsf/pages/searchresults.xhtml?refresh=t
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