Instead of Paying to Support Welfare Recipients, Many Californians Want

Essay

Instead of paying to support welfare recipients, many Californians want them to find jobs; if necessary, they want the state to create public service jobs for those who cannot find jobs in private industry. In a survey of 800 registered voters, 400 Republicans and 400 Democrats, 75% of the Republicans and 90% of the Democrats favored the creation of public service jobs. Use a large-sample estimation procedure to compare the proportions of Republicans and Democrats who favor creating public service jobs in the population of registered voters in California.
The approximate 95% confidence interval is:
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Based on the interval above, is there a difference in the proportion of Republicans and Democrats who favor creating public service jobs in California?
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Explain.
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