4 concepts
Descriptive or Inferential Statistics?
Descriptive statistics and inferential statistics are both important components of statistics when learning about a population.
Hypothesis Tests or Confidence Intervals?
Hypothesis tests and confidence intervals are related, but have some important differences.
Quantitative or Qualitative Data?
Different statistical tests are used to test quantitative and qualitative data.
One, Two, or More Groups?
Different statistical tests are required when there are different numbers of groups (or samples).