PART A: Understanding Statistical Concepts (20 points = 5 questions * 4 pts each)

1. Identify the independent and the dependent variable and their levels of measurements, as well as the unit of analysis, in the following hypothesis:
   Those who favor the Democratic Party are more likely than those who favor the Republican Party to support restrictions on handguns.
2. Identify the level of measurement and the unit of analysis for the variable provided by the following question in the survey:

Q) Which racial/ethnic groups are dominant in your school?

1. Non-Hispanic White
2. Non-Hispanic Black
3. Hispanic
4. Asian and Pacific Islanders
5. American Indian
6. Others

3. What change or improvement would you suggest for the graphs in Figure 1? Explain the reasons for your answer.

4. Discuss the advantages and disadvantages of all three measures of central tendency. Are you confident that one of these three is the best measure of central tendency? If so, why?

5. Write a one- or two-sentence report summarizing what you have found out about changes in the diversity of race/ethnicity among college graduates between 1981 and 2001 in Table 1.

PART B: Calculating Statistics (40 points = 4 questions * 10 pts each)

6. Using the data in Table 2, construct a frequency distribution, percentage distribution, cumulative frequency distribution, and cumulative percentage distribution of the TOTAL number of major hurricane hits over the summer between 1851 and 2004 for the states in the table. Also, calculate mean and standard deviation of the number of major hurricane hits PER MONTH.

7. Use Table 3 to compute IQV (Index of Qualitative Variation) for male and female respondents separately to see which group is more diverse in their religious preference. Show your calculations.

8. Use Table 4 to calculate IQR (Interquartile Range) for each region. Show calculations, and verbally interpret the value of each statistic.

9. Assume that there were total 1,000 white students who took the history proficiency test at grade 4 in 1994. If they passed the test only if their score was above 194, how many white students passed the test in 1994? Use Table 5 to answer. Show your calculation.

PART C: SPSS Problems (40 points = 2 questions * 20 pts each)

10. Use GSS06PFP-A to look at levels of marital satisfaction and compare the number of hours that men and women spend on the Internet each week. Do you notice any gaps in Internet hours between men and women at different levels of marital satisfaction? Please make sure to include only the SPSS output that supports your answer. You can refer to the Question 5 in page 127 of the textbook.

11. Use GSS06PFP-B to study the number of hours that blacks and whites work each week. Is there a difference between two groups in the central tendency and variability of work hours? You can use any SPSS output, including tables and graphs, to support your conclusions about the difference between blacks and whites in the central tendency and variability of hours worked. Please make sure to include only the SPSS output that supports your answer. You can refer to the Question 5 in page 168 of the textbook.

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Solution: The downloadable solution consists of 23 pages, 1401 words and 36 charts.
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