2.3. Learning Objectives#
Here is what you should understand after this week
2.3.1. Concepts#
In statistical testing, a data sample is used to represent the population from which it is drawn
For small samples, outliers may render a sample unrepresentative
Replacing data with their ranks mitigates the effect of outliers on statistical tests
2.3.2. Python skills#
After this week you should be able to carry out, using scipy.stats:
Mann-Whitney or Wilcoxon Rank-Rum test (independent samples)
Wilcoxon sign-rank test (paired samples)
Spearman’s rank correlation including obtaining a \(p\)-value