Data Concepts

- Determine how much data you need
- Data types for hypothesis tests
- How are population and sample different?
- What are parameters, parameter estimates, and sampling distributions?
- What is the standard deviation?
- What is the pooled standard deviation?
- What is the variance?
- About the central limit theorem
- Randomness in samples of data
- Identifying outliers
- How skewness and kurtosis affect your distribution