Question

2. Candidates for political office realize that different levels of support among men and women may be a crucial factor in determining the outcome of an election. One candidate finds that 52% of 473 men polled say they will vote for him, but only 45% of the 522 women in the poll express support. Find a 95% confidence interval for the difference in proportions of males and females who will vote for this candidate. Interpret your interval (i.e., put in a sentence).

Please show all work. Typed work only. no handwritten.

Answer 1

n1 = 473
n2 = 522


Lower Limit =
upper Limit =
95% Confidence interval is ( 0.008 , 0.132 )
( 0.008 < ( P1 - P2 ) < 0.132 )

We are 95% confident that the difference in true population proportions of males and females who will vote for this candidate lies within the interval  ( 0.008 , 0.132 ).