part 2 exploratory data analysis chapter 3 describing data: numeric descriptive statistics

Part 2 Exploratory Data AnalysisChapter 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?

• Non-central Location Measures– Quartiles– Percentiles

• Measures of Dispersion– Range– Variance

• Measures of Dispersion continued– Standard Deviation– Coefficient of Variation

• Measure of Skewness– Symmetrical Distribution– Positively Skewed Distribution

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

• The Box Plot

• Choosing Valid Descriptive Statistics Measures• Using Excel (2007) to Compute Descriptive

Statistics– Function Keys– Data Analysis Add-in

• Summary• Exercises

Applied Business Statistics Methods and Excel-based Applications

Third edition

TREVOR WEGNER ISBN 978-0-70217-774-3

End of Chapter 3

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