Statics Math/ Data Tables
Use the SPSS software and the data set: (2004)GSS.SAV (attached) recode the variable for political party identification (PARTYID) into a NEW variable that uses the following old values to create the following new
1 thru 2 = 1= Democrat
3 thru 5 = 2 = Independent
6 thru 7 = 3 = Republican
8 = 4 = Other
(Answer the following questions; use the (new) recoded variable with a variable premarsx and compare them- crosstab)
- Variable PREMARSX will be a dependent variable (place it in the row), variable NEW PARTID will be an independent variable (place it in the column).
- Remember to request column percentages.
- Show your work (attach all tables).
1. Of all the respondents who are Republicans, what percentage believes that premarital sex is always wrong?
2. Of all the respondents who are Democrats, what percentage believes that premarital sex in not wrong at all?
3. Of all the people who are Independents, what percentage believes that premarital sex is always wrong or almost always wrong?
4. Seven detention centers are surveyed. The current number of inmates in each detention center is 30, 11, 22, 15, 5, 42, and 99. What is the median number of inmates?
5. When do we use a Chi square?
6. Participants in a research study have been classified as lower, middle, or upper class in terms of their socioeconomic status. We can say that the variable of social class has been measured at the ____________________ level of measurement.
7. A distribution has 14 scores. Each score is represented only once in the distribution, with two exceptions. The score of 72, appears three times, and the score of 48 appears four times. What is the mode of the distribution?
8. Assume that the mean of a distribution of test scores is 40 and the standard deviation is 10. You have been told that your test score is one standard deviation above the mean. What is your test score?
9. Assume that the mean of a distribution of test scores is 60, with a standard deviation of 20. What would be the value of the score that falls two standard deviations below the mean?
10. What menu across the top of the SPSS data editor window will let you access the FREQUENCIES command?
(a) Analyze (d) Summarize
(b) Data (e) Window
11. Briefly explain the difference between percent and valid percent in a frequency table.
12. In a survey instrument, a question asks “In a typical week, how often do you exercise enough to raise your heart rate?” The response categories are never; 1 time per week; 2 times per week; 3 to 4 times per week; 5 or more times per week. What is the level of measurement for this variables?
(a) dichotomous (d) nominal
(b) interval (e) none of the above
Use the following number set to answer questions 13, 14, 15, 16, and 17:
2, 16, 3, 8, 10, 4, 2
13. Calculate the mean.
14. Calculate the median.
15. What is the mode?
16. Calculate the range.
17. Calculate the standard deviation.
18. TABLE 1: Frequency Table for Social Class (CLASS)
Question: On table 1 on CLASS shows that 41.1% of _________ respondents consider themselves members of the working class.
(a) 1491 (d) 1500
(b) 613 (e) 734
The table above shows a crosstab between attitudes toward abortion in the case where the woman was raped and when the woman is unmarried. How many respondents report approving of abortion in both cases?
(a) 1 (d) 102
(b) 70 (e) 343
Table 3 shows univariate or bivariate analysis?
21. Dr. Smith has a data set with two variables that allow him to test the hypothesis that students who get along with their parents are less likely to engage in deviant activities, such as skipping school or cheating on a test. His independent variable is called GETALONG (get along with parents) and is coded as follows:
1 ‘not often’
2 ‘some of the time’
4 ‘most of the time’
Andrew’s first dependent variable is called CHEAT (cheat on a test) and is coded as follows:
1 ‘before but not in the last year’
2 ‘few times per year’
3 ‘1-2 times per month’
4 ‘1-2 times per week’
Dr. Smith decides to test the hypothesis that students who get along with their parents more often are less likely to cheat on a test. He wants to use a crosstab table to do this. What test of association should he request from SPSS?
(c) chi square
(d) Pearson’s rcorrelation
22. Dr. Smith also tests a hypothesis that predicts girls are more likely than boys to be involved in extracurricular activities. His independent variable, GENDER, is coded 1 ‘male’ 2 ‘female.’ His dependent variable, EXTRA, is coded as 1 ‘yes, involved’ 2 ‘no, not involved.’ Again, Andrew requests a crosstab table in SPSS to test this hypothesis. What measure of association should he request?
d) cumulative percent
e) regression coefficient
TABLE 4: Relationship between Drinking and Missing Class
- Amanda tests the relationship between number of drinks it typically takes to get drunk with how often a respondent misses class as a result of drinking. She hypothesizes that people who report a higher number of drinks to get drunk will likely miss classes more often than those who report a lower number of drinks to get drunk. Table 4 shows the results of her analysis. What percent of those who report 7 or more drinks to get drunk miss class 2 times or more?
(a) 100% (d) 52.2%
(b) 17.4% (e) 14.3%
24. According to Amanda’s gamma results in Table 4, knowing how many drinks a person typically has to get drunk improves Julie’s estimate of how many times they have missed class by _______ percent.
(a) 4.7% (d) 53.5%
(b) 8.6% (e) 0%
25. What direction is the relationship between number of drinks to get drunk and number of missed classes in Table 4?
(a) North (d) negative
(b) supported (e) no direction indicated
26. Complete Independent Project A: (10 points)
Hypothesis A states: Those who oppose capital punishment also oppose abortion.
Hypothesis B states: Those who oppose capital punishment are in favor of abortion.
**Place CAPPUN in the column, and ABANY in the row.
Remember to request column percentages.
- Using the 2004GSS.SAV (attached) data file, do bivariate analyses to determine which hypothesis is more accurate.
Please answer the following questions:
1. What percentage of those who oppose capital punishment report opposing abortion?
2. What percentage of those who are in favor of capital punishment report supporting abortion?
-Create two (2) additional crosstabulations with CAPPUN as the independent (place it in the column) variable and ABDEFECT and ABSINGLE as the dependent (place it in the row) variables.
3. What is the epsilon value of supporting abortion in the case of a birth defect between those who favor and those who oppose capital punishment?
4. What is the epsilon value of supporting abortion in the case where the mother is single between those who favor and those who oppose capital punishment? Is this bigger or smaller than the above epsilon? What does this mean?
27. Complete Independent Project B: (10 points)
Using the BINGE.SAV data file (attached), create a crosstabulation that measures the association between year in school (CLASS) and importance of parties as a college activity (PARTIES).
(tip: CLASS – column as an independent variable, PARTIES – row as a dependent variable)
Please answer the following questions:
What measure of association did you ask for?
What is the value of this measure of association?
What percentage of first year students believe parties are very important?
What percentage of seniors believe parties are very important?
Based on your analysis, is there an association between year in school and the importance of parties?
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