Help me understand lift (lower), middle, upper intervals in A4T report.

[emmak109]

I am trying to understand how would a histogram look for controlled and treated groups? Why do we have a negative lower lift for RPV metric? Is there a visual graphs I can go through?

[alexbishop · Accepted solution]

You might have already seen it but is this help page useful? And also the page it links to relating to the statistical calculations?