Producing%20good%20data%20through%20sampling%20and%20experimentation - PowerPoint PPT Presentation

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Producing%20good%20data%20through%20sampling%20and%20experimentation

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Producing good data through sampling and experimentation. question to be answered ... methods for single variables (univariate analysis) - shape, center, spread ... – PowerPoint PPT presentation

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Title: Producing%20good%20data%20through%20sampling%20and%20experimentation


1
  • Producing good data through sampling and
    experimentation
  • question to be answered - what variables will be
    measured? organize!
  • types of variables measured categorical
    continuous
  • simple random sampling (SRS)
  • completely randomized experimental design
  • matched pairs
  • Descriptive analysis
  • graphical and numerical methods for single
    variables (univariate analysis) - shape, center,
    spread
  • graphical and numerical methods for bivariate
    relationships categorical vs. categorical
    categorical vs. continuous continuous vs.
    continuous

2
  • Transition to inferential statistics through
    probability
  • general introduction to probability including
    simple and, or, and not rules relative frequency
    interpretation
  • sampling distributions for counts proportions
    and for means
  • important distributions include uniform,
    binomial, normal, t, and chi-square
  • Inferential statistics include confidence
    interval estimation and hypothesis testing.
  • Confidence intervals
  • for p for m for md for m1 - m2

3
  • Hypothesis testing
  • for m for md for m1 - m2?? for association
  • Don't forget your "formula sheet" for the exam -
    must be turned in with the exam.
  • Do as many of the assigned homework problems you
    can do before the exam
  • Review old tests and quizzes
  • Online, look at the videos and do the chapter
    quizzes
  • Read the book look for the "boxes" and review
    the chapter summaries
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