Question

A random sample of 150 voters taken after the 2012 presidential election was collected to examine the relationship between income and party support. The average income for Romney was $75,000 (i.e., x = 75000). The average income for the population is $57,500 and the population standard deviation is $8,000 (i.e., Î¼ = 57500). Use the appropriate test to determine whether Romney supporters differ from the general population when it comes to income. Use 95% confidence to answer. What statistical test is needed to answer this question? What is the critical value for establishing statistical significance?

          A random sample of 150 voters taken after the 2012 presidential election was collected to examine the relationship between income and party support. The average income for Romney was $75,000 (i.e., x = 75000). The average income for the population is $57,500 and the population standard deviation is $8,000 (i.e., Î¼ = 57500). Use the appropriate test to determine whether Romney supporters differ from the general population when it comes to income. Use 95% confidence to answer. What statistical test is needed to answer this question? What is the critical value for establishing statistical significance?

Added by Joseph W.

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