Exam #1 Practice

September 16, 2013

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!

Justin

Justin Holman is CEO of Aftermarket Analytics, where he leads efforts to develop cutting edge sales forecasting and inventory optimization technology for the Automotive Aftermarket. Prior to joining Aftermarket Analytics, Justin managed corporate consulting for the Strategy & Analytics division at MapInfo Corporation, leading major projects for retail clients including The Home Depot, Darden Restaurants, Bridgestone-Firestone, Sainsbury’s and New York & Company. Before that, Justin served as Vice President of Software Development at LogicTools, now part of IBM's supply chain application software group. Justin holds a B.A. from Claremont McKenna College, a Ph.D. from the University of Oregon and an Executive Management certificate from Northwestern University's Kellogg School of Management.

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