About: http://webisa.webdatacommons.org/72920997

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The number of responses you need is dependent on several factors including your population size, confidence level, and the margin of error you hope to achieve.
http://www.w3.org/ns/prov#wasQuotedFrom	surveygizmo.com