Political Affiliation: Spending Two random samples were drawn from members of the U.S. Congress. One sample was taken from members who are Democrats and the other from members who are Republicans. For each sample, the number of dollars spent on federal projects in each congressperson’s home district was recorded.

(i) Make a cluster bar graph showing the percentages of Congress members from each party who spent each designated amount in their respective home districts.

(ii) Use a 1% level of significance to test whether congressional members of each political party spent designated amounts in the same proportions.

Dollars Spent on Federal Projects in Home Districts Party Less than 5 Billion 5 to 10 Billion More than 10 Billion Row Total Democratic 8 15 22 45 Republican 12 19 16 47 Column Total 20 34 38 92 AppendixLO1