STATISTICAL PACKAGES FOR SOCIAL SCIENCES

Use the Explore command to compare the income levels (rincdol) for both genders (sex). Go to the Resources area of the class to download the files that you will need to complete your assignments each week. Open gss.sav in SPSS, and complete the following calculations to determine the differences in the income level between males and females.

Compute the following for each group:

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  1. Mean
  2. Median
  3. Quartiles
  4. Range
  5. Variance
  6. Standard deviation
  7. Skewness
  8. Kurtosis

The Explore command will also produce several different types of plots. Click on the Plots button, and create the following plots for each group:

  1. Histograms (include the normal curve on the histogram)
  2. Box plots
  3. Stem-and-leaf plots

Use the calculations and plots to answer the following questions. When discussing a calculation, include the value in the text to bolster your analysis.

  1. What can you determine from the measures of skewness and kurtosis relative to a normal curve?
  2. What are the mean and median?
  3. Does the mean or median seem better to represent the scores? How have extreme scores impacted these values?

Submit your output from all SPSS analysis as an SPSS output file and your Word document.

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