A sample of 565 low-income and 680 high-income individuals was surveyed concerning their opinions on television violence. Among the low-income respondents, 400 believed that television violence is excessive, whereas 417 of the high-income respondents believed that television violence is excessive.

Answer the following questions.

1. What is the null hypothesis?

2. What is the research hypothesis?

3. What is the proportion for each group?

4. What is the z-statistic for the test?

5. Using formal sentences,explain the results of the hypothesis test of the difference between the two proportions (alpha=.05). Use numbers to support your conclusion.