Exam #1 Practice

September 16, 2013 at 10:09 pm  •  Posted in busad265 by  •  0 Comments

To prepare for Exam #1 tomorrow I would suggest spending time understanding the concepts listed by Chapter in the Exam #1 Review.  In addition, I would suggest spending time practicing these tasks (the 14 listed below) using the various data sets in the black_7e_excel_database or other data sets in the text.

  1. Construct a stem-and-leaf plot.
  2. Construct a frequency distribution table.
  3. Draw a histogram.
  4. Calculate the class midpoints for the bins in the histogram
  5. Draw a cumulative frequency distribution curve.
  6. Calculate the mean.
  7. Calculate the median.
  8. Calculate the mode.
  9. Calculate the range.
  10. Calculate the mean absolute deviation (MAD).
  11. Calculate the variance.
  12. Calculate the standard deviation.
  13. What percent of values are within 1 or 2 standard deviations of the mean?
  14. Assuming the data are approximately normally distributed, what percent of values should be within 2 standard deviations of the mean according to the Empirical Rule?

Good luck!

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