Welcome to Sample size calculation - level I
Sample Size Calculation — Level I is an interactive, self-paced course that teaches you the fundamental concepts of how to calculate the required sample size for experiments. This course focuses on building intuition for why you need to plan the sample size before the experiment and what settings and aspects that affect the required sample size.
In this course, you'll:
- Get a short recap on alpha and power, and how they relate to sample size calculations
- Learn how the baseline mean and variance of a metric affect the required sample size
- Build intuition for sample size calculations buy working in an interactive sample size calculator playground
There are quiz questions throughout the course to help you check your understanding of the material. Complete each lesson's questions to track your progress.
Before you begin
Before you start this course, you should go through the following lessons from the hypothesis testing course:
or take the full Hypothesis Testing course.
Lessons
This course consists of the following lessons. Click a lesson to start learning.
Lesson 1: What is the required sample size?
Learn why it's crucial to calculate the required sample size before running an experiment.
Lesson 2: Alpha and power
Revise your understanding of these fundamental concepts to ensure you can follow the rest of the course.
Lesson 3: Baseline mean and variance
Understand how the baseline mean and variance of a metric affects the required sample size.
Lesson 4: Sample size calculation playground
Build intuition for sample size calculation by playing with different settings in the playground.