As we approached the midterm elections, in the summer of 2010, Democrats and Republicans were split about our nation's top priorities. A sample of n = 900 registered voters were asked the following question: "Which ONE of the following items do you think is most important for the federal government to be working on right now?" The list of options is shown in the table below.
Options were rotated to reduce bias, and voters were allowed to indicate "All," "None," or "Unsure."

Suppose that there were 400 Democrats, 350 Republicans, and 150 Independents in the sample. Use a large-sample estimation procedure to compare the proportions of Republicans and Democrats who mentioned the economy and jobs as the most important item for the federal government to work on. Compare the proportions of Republicans and Independents who mentioned deficit spending as the most important item. Explain your conclusions.

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All Democrats Republicans Independents (96) (%) 47 (96) Economy 37 48 and Jobs Deficit, 15 16 Spending Terrorism, 10 10 Security Iraq and Afghanistan Immigration 5 All (vol.) None/ 16 18 16 13 Other (vo.) 1 Unsure