A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

The experimentation team is identifying users who outperformed the control baseline. For each user in treatment_a whose metric value exceeds the average control value for the same test, show the user ID, their treatment value, and the average control value.

Summary

Treatment beat control. For these users.

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