Exercise

# Power analysis August 5 percentage point increase

Let's say you've reconsidered your expectations for running the experiment in August. 54% is already a really high conversion rate, so increasing it by 10 percentage points may be difficult. Rerun your power analysis assuming only a 5 percentage point increase in your conversion rate for the test condition.

Instructions

**100 XP**

- Update your expected value to only be a 5 percentage point increase over conversion rates in August.
- Fill in the argument names for proportion, alpha, and beta.
- Take a look at your sample size to see how they've changed.