Statistics

Please do each part in separate file, each one of part 1 and 2 should be about 2 pages.

Part 1

Read the article entitled, “Are We Smarter than Our Parents?” (Attached to this Order). This article addresses a study by Dr. James Flynn of the rise of the IQ rate over generations, and how statistics are involved in tracking this phenomenon, especially with reference to the material in chapter 5 of this book

This Article and this chapter from Bennett, J. O., Briggs, W. L., & Triola, M. F. (2014). Statistical reasoning for everyday life. 4th ed. Boston, MA Pearson/Addison Wesley.

Write a paper in which you explore some of the statistical data that has been found in this area of study. Additionally choose and answer one of the four questions below in a focused and clear manner. Remember to integrate the statistical data in the article that discusses this topic.

  1. Which explanation do you favor for the Flynn effect: that people are getting smarter or that people are merely getting more practice at the skills measured on IQ tests? Defend your opinion.
  2. The rise in performance on IQ tests contrasts sharply with a steady decline in performance over the past few decades on many tests that measure factual knowledge, such as the SAT. Think of several possible ways to explain these contrasting results, and form an opinion as to the most likely explanation.
  3. Results on IQ tests tend to differ among different ethnic groups. Some people have used this fact to argue that some ethnic groups tend to be intellectually superior to others. Can such an argument still be supported in light of the Flynn effect? Defend your opinion.
  4. Discuss some of the common uses of JQ tests. Do you think that IQ tests should be used for these purposes? Does the Flynn effect alter your thoughts about the uses of IQ tests? Explain.

 

Part 2

Locate a news article or report (in a popular news source such as Time, Newsweek, or the Wall Street Journal) in which a population mean is estimated from a sample. The article should include a margin of error and confidence interval. Discuss the subject matter in the article, and interpret the results and what the confidence interval and margin of error mean as they apply to the specific subject matter.

 

Part 3

Answer the questions in the attached file “Data File”, copy the questions with the answers if you can, as you did a great job for me before!

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