You want to know whether people in different regions of the
country are equally likely to vote Democratic, Republican,
Independent, or Libertarian in the next election. You would use
a
A
chi-square goodness-of-fit test.
B
either chi-square test, depending on how you set up the
problem.
C
chi-square test of independence.
D
both chi-square tests, in order to check the results of one
with the other.