Use the output to answer the following questions:

a. What is the null hypothesis?

b. What proportion of people who are worried about losing their source of economic support said they voted in the 2012 election? What proportion of those who are not worried said they voted?

c. What is the difference in proportions? SPSS offers two t-values associated with this difference. Which should you use? What is the p-value associated with that t-value?

d. Assume that you were conducting a two-tailed test at an alpha-level of .05.

Would you conclude that the difference is “statistically significant”? Explain how the appropriate p-value on the output allows you to answer this question.

e. Assume that you were conducting a one-tailed test at an alpha-level of .05.

Would you conclude that the difference is “statistically significant”? Explain how you can use the p-value for the two-tailed test to answer this question.

f. What is the 95% confidence interval for the difference in proportion between those who are worried and not worried about losing their main source of economic support?