# Fictional example output

**The requested four-week horizon is insufficient for the stated planning assumptions.** Baseline submit rate is 100/1,000 = 10.00%. The meaningful target is 12.00%: +2.00 percentage points, or +20.00% relative.

The optional binary normal-approximation calculator requires approximately 3,841 independent units per arm, 7,682 total, for two-sided alpha .05 and power .80. At 1,000 eligible users/week with a 50/50 split, enrollment requires about 7.682 weeks, plus 7 days for the final cohort to mature. Four weeks supplies only about 2,000 users per arm.

Design: change only form fields; assign users consistently, analyze accepted submissions per eligible assigned user at the fixed horizon, check instrumentation before enrollment, and predeclare the qualification guardrail. The approximate sample estimate is not a guarantee and is invalid for clustered users or repeated dependent trials.

Decide whether to extend the enrollment horizon, seek additional eligible traffic, or revise the user-selected effect criterion. Do not launch a four-week test with a promised winner. No experiment created and no auto-apply enabled.