Paper 2 · Statistics
⏱ Tested in 1 exam question since 2023
Lesson 21 of 21
Statistics 21 – Hypothesis testing and confidence intervals
This tutorial is for members
Read the lesson notes free below — subscribe to watch the full worked video and download the PDF.
Subscribe for full access · €199/yrYou’ll learn
- Test a claim by building a 95% CI and checking if the claimed value lies inside
- Use the hypothesised p₀ (not p̂) in the standard error when testing a proportion
- Choose between the three equivalent rules: |z| > 1.96, p ≤ 0.05, CI containment
Most recent exam questions
- 2023 P2 Q8(b)(ii)
💬 Stuck on something in this lesson?
Send your question with this lesson’s name attached — you’ll get a reply by email.