Probability & Statistics · Statistics
Hypothesis Tests & p-values
Null and alternative hypotheses, test statistics, p-values and what they do and don't mean, Type I/II errors and power, the 0.05 convention, p-hacking and the replication crisis.
Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: Confidence intervals; CLT. Next: Regression; correlation vs causation. Sources: ASA Statement on p-values (Wasserstein & Lazar, 2016); Open Science Collaboration (Science, 2015); Crash Course Statistics #21–23.Next: 1. The procedure