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Landing Page Testing Calculator

How many test versions can you have? Use this calculator to find out.

Having too many test versions means it will take a really long time to get statistically valid results from your landing page test.

To find out how many versions you should create, or how long your test will take, follow these steps:

  1. How many conversions will your landing page test get per day?
    conversions per day
  2. Do you want to:



    How long will you run your test?
    days
    How many versions do you have?
    versions
Advanced options

  1. Expected conversion / response rate
    % (default: 10%)
  2. Resolution of test (as % of conversion rate)
    % (default: 25%)
  3. Type I confidence level of test (zα) (avoid false positives)
    80% confidence (1.282) (default)
    90% confidence (1.643)
    95% confidence (1.960)
  4. Type II confidence of test (zβ) (avoid false negatives)
    80% confidence (0.841) (default)
    75% confidence (0.674)
    50% confidence (0)





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