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Library · Traffic · How to run this

Lander A/B needs CRM settle sample

How to run thisTraffic3 steps
CalculatorLander A/B sample · Calculator lives in the articleOpen

Tracker click convert is not CRM settle. Days to call ≈ n per arm ÷ visitors per arm per day, with n from settle % and your MDE. Type visitors / arm / day, CRM settle %, and MDE %.

Pair: Lander A/B sample on Traffic. Generic n: test sample size. Call write-up: test decision log.

What you type

Visitors / arm / day — lander unique visitors per arm per day (tracker export).

CRM settle % — settled orders ÷ visitors on that lander (CRM, not pixel).

MDE % — relative lift % you would ship for (typed — not a blog default).

Approximate n per arm at ~80% power from settle % and MDE. Days to call = n ÷ daily visitors. Wait or raise traffic when days blow past your test window — do not invent an MDE chip.

What not to do

Do not invent an MDE. Do not use click convert in place of CRM settle %. Do not mix arms with different daily traffic without retyping. Do not call the test on pixel wins before settles catch up.

Related: Traffic, test sample size, test decision log, bot-filter waste.

Procedure

  1. Type visitors per arm per day.
  2. Type CRM settle % and MDE %.
  3. Wait or raise traffic when days exceed the test window.

Failure modes

  • Inventing an MDE.
  • Using click convert instead of CRM settle %.
  • Calling on pixel wins before settles catch up.

Worked example

None on this page yet. When one lands it will be a real case: what broke, the number, and what changed. Not a composite.

Glossary

Lander A/B days to call
Approximate n per arm from CRM settle % and MDE, divided by visitors per arm per day.

Work with us — We run this job on your accounts. Services

FAQ

Is this test sample size?
Related n. [Test sample size](/manuals/test-sample-size) is a generic two-arm n. This page is lander traffic paced to CRM settle % and days to call.
Is this test decision log?
Related call. [Test decision log](/manuals/test-decision-log) is the ship/kill write-up. This page is how many days until the settle sample can support the MDE you typed.
What MDE should I invent?
None. Type the relative lift % you would actually ship for.