RES 710 Week 5 Discussion

Students need to contribute six substantive posts in this discussion by the due date indicated. The substantive posts can be any combination of responses and replies.

1.    Discuss the assumptions associated with hypothesis testing. How can these assumptions affect the quality and/or results of a study?

2.    Why might a researcher convert sample values into z-scores? Discuss the conversion process.

3.    Define null hypothesis and alternative (or research) hypothesis? What is the relationship between research questions and hypotheses?

4.    Please define the following terms: statistic, statistics, statistical hypothesis testing, and statistical map.

5.    Define descriptive and inferential statistics in the research process. What is the major difference between descriptive statistics and inferential statistics?

6.    What did you learn from Burdess’ (2013) Chapter 14: Hypothesis about Categories?

7.    What is Chi-square? Provide the chi-square formula and an example of using Chi-square.

8.    Discuss dependent and independent variables. Give an example.

9.    How do we decide whether to reject or retain the null hypothesis based on Burdess (2013)?

10. What are the dependent and independent variables for the following hypotheses?

• Older Americans are more likely to support stricter immigration laws than younger Americans.
• People who attend church regularly are more likely to oppose abortion than people who do not attend church regularly.
• Elderly women are more likely to live alone than elderly men.
• Individuals with postgraduate education are likely to have fewer children than those with less education.

11.Identify the independent variable, the dependent variable,and the unit of analysis in the following hypothesis:

• Interstate migration in the United States lowers state poverty levels.
• Documented immigrants in the United States are less likely than undocumented immigrants to use social welfare programs.
• On average, the annual household income of female-headed households is about 25% less than the annual household income of married couple households.
• Geographically contiguous countries should experience higher rates of migration than non-contiguous countries.
• In the United States, fewer blacks than whites own their home as opposed to rent their home.

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