midStatistics
What is hypothesis testing?
Updated May 17, 2026
Short answer
A method to test assumptions using sample data.
Deep explanation
It compares null and alternative hypotheses using p-values and significance levels.
Real-world example
Testing whether a new drug is more effective than placebo.
Common mistakes
- Misinterpreting p-value as probability of hypothesis being true.
Follow-up questions
- What is Type I error?
- What is Type II error?