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Chapter 10. Experimental Design: Statistical Analysis of ...

10 - 1 Chapter 10. Experimental Design: Statistical Analysis of DataPurpose of Statistical AnalysisDescriptive StatisticsCentral Tendency and VariabilityMeasures of Central TendencyMeanMedianModeMeasures of VariabilityRangeVariance and standard deviationThe Importance of VariabilityTables and GraphsThinking Critically About Everyday InformationInferential StatisticsFrom Descriptions to InferencesThe Role of Probability TheoryThe Null and Alternative HypothesisThe Sampling distribution and Statistical Decision MakingType I Errors, Type II Errors, and Statistical PowerEffect SizeMeta-analysisParametric Versus Nonparametric AnalysesSelecting the Appropriate Analysis : Using a Decision TreeUsing Statistical SoftwareCaseAnalysisGeneral SummaryDetailed SummaryKey Terms Review Questions/Exercises10 - 2 Purpose of Statistical AnalysisIn previous chapters, we have discussed the basic principles of good Experimental design.

What we have in Figure 10.1 are two frequency distributions of yards per play. A frequency distribution shows the number of times each score (in this case, the number of yards) is obtained. We can tell at a glance that these two distributions are markedly different. A pass play is a study in contrasts; it leads to extremely variable outcomes.

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