**Social
Studies 201**

**Fall 2003**

**Computer Problem Set 2**

This assignment asks you to use data from SSAE98 (*Survey
of Student Attitudes and Experiences 1998 *– see the questionnaire from the
Survey and the list of variables handout of September 16, 2003), obtain some
statistics from these data and make comments on the results. When you have completed the problems below,
hand in the printout of the SPSS output and the comments. You may wish to copy the SPSS output file to
another program such as Word for Windows, write the comments in that file, and
hand in a paper copy of this. For each
of the following questions, part (a) refers to what you are to do with
SPSS. For part (b) of each of these
questions, write the answers and comments in pen or pencil on the printout (or
in a Word for Windows file).

1. (a) Obtain a frequency distribution, statistics
(mean, median, and standard deviation), and histogram, with a normal
distribution superimposed, for JOBHOURS (hours per week at job). To obtain this, use *Analyze – Descriptive Statistics
– Frequencies* for JOBHOURS.
Before clicking OK, click on the appropriate statistics and click on *Charts-Histogram-with
normal curve*, then *Continue*.
(b) (i) Using the mean, standard deviation, and frequency distribution,
calculate the percentage of cases are within one standard deviation of the
mean? What percentage of cases are
within two standard deviations of the mean?
How do these compare with the rules discussed in class. (ii) Explain how the median study hours can
be obtained from the frequency distribution. (iii) In words, identify
similarities and differences of the histogram and normal distribution.

2. (a) Question 51 of SSAE contains information about the number of hours of work spent at various activities. Using the same procedures as in question 1, obtain the frequency distributions, statistics (mean, median, and standard deviation), and histograms with normal distribution for the three variables study hours, extracurricular hours, and care of dependents hours. (b) (i) From the statistics on the printout, calculate the coefficient of relative variation (CRV) for each of the three distributions. Comparing the standard deviations and CRV, write a short note comparing the variation in the three distributions. (ii) Which distribution appears most similar to and which most different from the normal distribution? Explain in a sentence or two.

3. (a) Use *Analyze-Compare
Means-Means* to obtain means and standard deviations of the three variables
of question 2 (on the dependent list), with sex of the respondent (on the
independent list). (b) (i) Using the
means of hours spent at various activities, describe the main similarities and
differences between male and female use of time. (ii) For the variable, hours spent caring for dependents, which
of males or females are more varied.

4. (a) Use *Analyze-Compare Means-Means* to
obtain means and standard deviations of JOBHOURS and DEBT1 (debt at the start
of the semester, question 49) by household income. (b) From the means of hours worked at jobs and student debt of
(a), write a short note comparing the patterns that students of different
incomes appear to use to help finance attendance at university.