Since Wyoming was the first state to grant women the right to vote and Montana was the first state to elect a woman to congress, you hypothesize that states west of the Mississippi have elected more women to the US Congress than those east of the Mississippi.

Select one:

a.)Two-sample T-Test for means

b.)T-test for the difference in matched pairs (paired data)

c.)No inference required

d.)Two-sample Z-Test for proportions