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T h e o ry o f D a ta A n a ly si s ? !
aCoursesinstatistics:Collectionofmethodsforadefinedtypeofproblems.Exercises:Datasetsaskingforthismethodology.
bPractice:Startfrom(scientific)questionand(potential)data.
−→ChooseappropriatestatisticalmethodsInreality:
•Questionsareoftenvague
−→Sharpentoidentifysuitablemethods
•Dataaredistorted,missing,...
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cPracticeofDataAnalysisisdifficulttoteachconsistently.
−→“Apprentiship”,“StatisticsLab”
dTheoryofDataAnalysis?wouldneed“softscience”methods.Firststep:Concepts,like
•StatisticalProblem:(“Scientific”)Questionand(potential)Data.
•Strategy,consistingofsteps(seecourseonRegression).
•Qualityofaresult:Howtomeasure?−→RankingofStrategies.
eCaseStudiesareuseful!
fGeneralStrategytodefineandtackleaStat.Problem:tofollow