MeritKeep

Sample size intuition

Why a 100% conversion rate on three users is not news, and roughly how much data a difference of a given size needs before it means anything.

core~2hWe mark it against a checklist you can read first
The barWhat counts as knowing this

Say whether a reported difference is large enough to distinguish from noise at the sample size given

That sentence is the bar. It only counts once your work shows you can do it. Reading about it does not.
Prove itA check for this one skill

Up to 2 questions on this skill alone, marked against the bar beside this. It stops as soon as the answer is clear. No account, and your answers are not kept.

01 · Prerequisites

You'll need these first

03 · What comes next

What it unlocks

Start on Statistics & Data Literacy

Every skill above, ordered by what depends on what, with the projects above that as the evidence you actually did it. We work out where you already are first, so the path skips what you can do.

About three minutes to set up. Nothing is marked until you hand something in.Start this path
Part of Statistics & Data Literacy.

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