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Part 2 Exploratory Data AnalysisChapter 3 Describing Data: Numeric Descriptive Statistics
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• Introduction– Location– Dispersion– Skewness
• Central Location Measures– Arithmetic Mean (Average)– Median
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• Central Location Measures continued– Mode– Which central location
measure is best?
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• Non-central Location Measures– Quartiles– Percentiles
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• Measures of Dispersion– Range– Variance
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• Measures of Dispersion continued– Standard Deviation– Coefficient of Variation
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• Measure of Skewness– Symmetrical Distribution– Positively Skewed Distribution
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• Measure of Skewness continued– Negatively Skewed Distribution– Pearson’s Coefficient of Skewness
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• The Box Plot
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• Choosing Valid Descriptive Statistics Measures• Using Excel (2007) to Compute Descriptive
Statistics– Function Keys– Data Analysis Add-in
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• Summary• Exercises
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Applied Business Statistics Methods and Excel-based Applications
Third edition
TREVOR WEGNER ISBN 978-0-70217-774-3
End of Chapter 3