# Statistical Inference
- Use _statistic of a sample_ $\bar x$ to estimate _parameter of population_
$\mu$.
- _Confidence Interval_ (CI) is an interval expected to contain the parameter
being estimated.
- Given a _Confidence Level_ (CL) $\gamma\%$, a random CI should contain $\mu$
being estimated $\gamma\%$ of time.
- Bootstrap: sampling with replacement
- Normality Test
- Q-Q plot
- Shapiro-Wilk Test
- [[correlation|Correlation]]