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Part 2 Exploratory Data Analysis Chapter 3 Describing Data: Numeric Descriptive Statistics

Part 2 Exploratory Data Analysis Chapter 3 Describing Data: Numeric Descriptive Statistics. Introduction Location Dispersion Skewness Central Location Measures Arithmetic Mean (Average) Median. Central Location Measures continued Mode Which central location measure is best?.

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Part 2 Exploratory Data Analysis Chapter 3 Describing Data: Numeric Descriptive Statistics

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  1. Part 2 Exploratory Data AnalysisChapter 3 Describing Data: Numeric Descriptive Statistics

  2. Introduction • Location • Dispersion • Skewness • Central Location Measures • Arithmetic Mean (Average) • Median

  3. Central Location Measures continued • Mode • Which central location measure is best?

  4. Non-central Location Measures • Quartiles • Percentiles

  5. Measures of Dispersion • Range • Variance

  6. Measures of Dispersion continued • Standard Deviation • Coefficient of Variation

  7. Measure of Skewness • Symmetrical Distribution • Positively Skewed Distribution

  8. Measure of Skewness continued • Negatively Skewed Distribution • Pearson’s Coefficient of Skewness

  9. The Box Plot

  10. Choosing Valid Descriptive Statistics Measures • Using Excel (2007) to Compute Descriptive Statistics • Function Keys • Data Analysis Add-in

  11. Summary • Exercises

  12. End of Chapter 3 Applied Business Statistics Methods and Excel-based ApplicationsThird edition TREVOR WEGNER ISBN 978-0-70217-774-3

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