Statistics and Statistical Programming (Fall 2020)/w07 session plan: Difference between revisions
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== 10/27 Agenda == | == 10/27 Agenda == | ||
* Pset 5 PCs | * 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 | ** plotting error bars, and walking through some of the techniques Aaron used in the PC5 solution | ||
** review: calculating standard errors. | ** review: calculating standard errors. |
Revision as of 19:54, 27 October 2020
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?
- Base rate fallacy
- 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!)