Study Design Info (from Exam 1)
Normal distribution
- Basic probability concepts using the Normal distribution
- mostly relevant for sampling dist. and CI stuff
- 68/95/99.7% rule
Confidence Intervals
Practice: Look over the CI labs and understand the
solutions. Questions will mostly be extremely similar to
labs
Practice: Go through the CI quick-guides and know
how to use formulas, use correct t or z values, and check conditions
- Sampling Distributions
- Standard Error
- Margin of Error
- 68-95-99.7% Rule
- Central Limit Theorem (CLT)
- Goal for CIs
- HUGE: define/describe parameters and statistics in
context
- ‘confidence’ meaning
- Make CI’s for the 4 scenarios (formulas will be given)
- Check conditions
- Know which z* or t* value to use in CI
- Interpret CIs
- Check if certain values are plausible
- When and why do we use t-distribution instead of Normal
Hypothesis Testing
- Setting up H0 and HA corresponding to the context
- BIG: defining/describing parameters and statistics
in context
- P-value interpretations + definitions in context
- Answering research questions + writing conclusions using
p-value