Fundamentals of Hypothesis Testing
  • Introduction
  • Introduction to Hypothesis Testing: Going bowling with your Mum...
  • Population vs Sample
  • Setting Up the Null and Alternate Hypotheses Correctly
  • Short Quiz
  • The Burden of Proof in Hypothesis Testing
  • Lower-Tailed, Upper-Tailed, and 2-Tailed Tests
  • The Rejection Region
  • Type 1 Errors and Judge Judy
  • Type 2 Errors
  • Short Quiz
  • Worked Example 1: A Lower-Tailed Test - Your Dodgy Friend
  • The Standard Normal Distribution (aka Z-Distribution)
  • Using the Cumulative Standard Normal Probability Table
  • What if You Have a Different Standard Normal Probability Table?
  • Finding the Z-Critical Value using the Z-Table
  • Standard Errors
  • Calculating the Critical Value
  • Concluding the Test
  • Summary of the Steps to Answering a Hypothesis Testing Question
  • Short Quiz
  • Worked Example 2: An Upper-Tailed Test - Houses are Expensive!
  • Worked Example 3: A 2-Tailed Test - Youtube and Young People
  • Summary of this Section
  • A Quick Note About Practice Questions
  • Practice Questions for Section 1
  • Section 1: Worked Solutions to Practice Question 1
  • Section 1: Worked Solutions to Practice Question 2
  • Section 1: Worked Solutions to Practice Question 3
  • Section 1: Worked Solutions to Practice Question 4
  • Section 1: Worked Solutions for Practice Question 5
  • Section 1: Worked Solutions for Practice Question 6
Additional Concepts of Hypothesis Testing
  • Introduction to this Section
  • Overview of the 3 Methods to Answering a Hypothesis Testing Question
  • Review of the Critical Value Method (covered in the previous Section)
  • The Z-Score Method
  • Introduction to the P-Value
  • The P-Value Method
  • Short Quiz
  • Dealing with Sample Standard Deviations
  • Introduction to the Student T Distribution
  • Worked Example Using Sample Standard Deviation
  • P-Values for a 2-Tailed Test
  • The Central Limit Theorem
  • Hypothesis Testing with Proportions
  • Short Quiz
  • Summary and Some Important Reminders
  • Practice Questions for Section 2
  • Section 2: Worked Solutions for Practice Question 1
  • Section 2: Worked Solutions for Practice Question 2
  • Section 2: Worked Solutions for Practice Question 3
  • Section 2: Worked Solutions for Practice Question 4
  • Section 2: Worked Solutions for Practice Question 5
Practice Exam-Style Questions and Worked Solutions
  • Introduction to this Section
  • Exam-Style Questions
  • Worked Solutions to Exam-Style Question 1
  • Worked Solutions to Exam-Style Question 2
  • Worked Solutions to Exam-Style Question 3
  • Worked Solutions to Exam-Style Question 4
  • Worked Solutions to Exam-Style Question 5
  • Worked Solutions to Exam-Style Question 6
  • BONUS: Answering a Type 2 Error Question