Bài giảng Business Research Methods - Appendix 15a: Describing Data Statistically
Research Thought Leader “In the future, we’ll stop moaning about the lack of perfect data and start using the good data with much more advanced analytics and data-matching techniques.” Kate Lynch research director Leo Burnett’s Starcom Media Unit
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Describing Data StatisticallyAppendix 15aMcGraw-Hill/IrwinCopyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved.Research Thought Leader“In the future, we’ll stop moaning about the lack of perfect data and start using the good data with much more advanced analytics and data-matching techniques.”Kate Lynch research directorLeo Burnett’s Starcom Media UnitFrequenciesUnit Sales Increase (%)FrequencyPercentageCumulative Percentage56789Total12321911.122.233.322.211.1100.011.133.366.788.9100Unit Sales Increase (%)FrequencyPercentageCumulative PercentageOrigin, foreign (1)67812211.122.222.211.133.355.5Origin, foreign (2)5679Total1111911.111.111.111.1100.066.677.788.8100.0ADistributionsCharacteristics of DistributionsMeasures of Central TendencyMeanModeMedianMeasures of VariabilityInterquartile rangeQuartile deviationRange Standard deviationVarianceSummarizing Distribution ShapeSymbols___Key TermsCentral tendencyDescriptive statisticsDeviation scoresFrequency distributionInterquartile range (IQR)KurtosisMedianMode Normal distribution Quartile deviation (Q) Skewness Standard deviation Standard normal distribution Standard score (Z score) Variability VarianceDescribing Data StatisticallyAppendix 15aMcGraw-Hill/IrwinCopyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved.Photo AttributionsSlideSource7©Squared Studios/Getty Images
