To get a better understanding of the situation, read the following brief:

https://www.socialsecurity.gov/policy/docs/policybriefs/pb2005-01.html 

To get help writing your survey, read the following article:

http://www.ehow.com/how_16596_write-survey-questionnaire.html 

To get help creating your graph, read the following article:

http://www.ehow.com/how_4474239_make-graph-using-excel.html