A survey of a random sample of U.S. adults by The Pew Research Center for the People and the Press conducted in early January 2010 recorded each participant’s highest level of education completed and whether they knew that responding to the Census was required by law. Of the 973 participants who had some college or less, 27.9% (271/973) knew that responding to the Census was required by law. Of the 526 participants who had a college degree or more, 37.1% (195/526) knew that responding to the Census was required by law.
a. Identify the explanatory variable. Is it a categorical variable or a quantitative variable?
b. Identify the response variable. Is it a categorical variable or a quantitative variable?
c. Do the data provide any indication of an association between education level and the awareness that responding to the Census is required by law? Explain.