Statistics · Module 8 · Hypothesis testing with one sample

Hypothesis Testing Walkthrough

Put a claim on trial: assume the null hypothesis, measure how surprising your data would be, and decide. Watch p-values shade in as tail areas, see Type I and Type II errors play out, and run z, t and proportion tests step by step. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · Statistics Study Tools · CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Practice next in the Hypothesis Testing Lab. Every data set here uses made-up practice numbers chosen to look realistic; they are not clinical reference values. Normal areas come from an accurate normal CDF and t areas from an accurate Student t CDF, rounded to four decimal places.