Sample Size Calculator

The "Sample Size Calculator" function helps estimate the sample size and duration required to achieve statistically significant results in an A/B test.

Minimum Sample Size

Sample size can be estimated through two methods: indicator data calculation, or manual input.

If you select the former method, the mean value and standard deviation will be calculated by the system automatically and cannot be changed, while the latter requires the mean value and standard deviation being input manually.

• Statistical power (1-β) is set as 80% and cannot be edited.
• Confidence level (1-α) is set as 95% and cannot be edited

Minimum Test Duration

After the sample size estimation is completed, the calculator automatically estimates the required number of days based on a daily active user count of 1000. You can modify the daily active user count to recalculate the time required.