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To prepare for this Discussion:

    • Review Chapters 6 and 7 of the Frankfort-Nachmias & Leon-Guerrero text and in Chapter 7, p. 188, consider Hispanic migration and earnings and focus on how different levels of confidence and sample size work together.

 

  • Review Magnusson’s web blog found in the Learning Resources to further your visualization and understanding of confidence intervals.
  • Use the Course Guide and Assignment Help found in this week’s Learning Resources to search for a quantitative article related to confidence intervals.
  • Using the SPSS software, General Social Survey dataset and choose a quantitative variable that interests you.

By Day 3

Using SPSS:

    1. Take a random sample of 100.

 

  1. Calculate the 95% confidence interval for the variable. 
  2. Calculate a 90% confidence interval.
  3. Take another random sample of 400.
  4. Calculate the 95% confidence interval for the variable. 
  5. Calculate a 90% confidence interval.
Psychology
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