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Statistics and Statistical Programming (Fall 2020)/w07 session plan
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== 10/27 Agenda == * Pset 5 PCs ** PC4: interpreting the results of this chi-squared test ** plotting error bars, and walking through some of the techniques Aaron used in the PC5 solution ** review: calculating standard errors. *** What if don't have raw data (EQ2) *** Should I use special formulas from a textbook (such as the formula for SE of a proportion) or the default formula (sd / sqrt(n) )? ** Other questions? * Pset 5 EQs ** Base rate fallacy *** Review the definition *** How concerned should we be? ** P-values *** the "strength" of relationships *** significance of differences rather than differences in significance ** Chi-squared in particular *** Goodness of fit? Test if the distribution fits the data? * Meta-questions (many via Gus's comments) ** The practical the purpose of a statistical test (is to find the p-value)? ** What should you ask about any test? ** What do we know about causality from any of these tests? * Other questions * Upcoming ** Project plans ** Stats material this week ** Assessment coming. Discuss some details, goals of the activity, etc. ** No problem set is due on Nov. 3 (election day!)
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