A 51/49 split when you expected 50/50 invalidates the whole test — silently.
Sample Ratio Mismatch (SRM): traffic didn't divide as configured. Causes — redirect lag, bot filtering hitting one arm, a broken randomizer. At n=20k, a chi-square p
Conversion Lab Notes
@ConversionLabNotes
A 51/49 split when you expected 50/50 invalidates the whole test — silently.
Этот пост опубликован в Telegram-канале Conversion Lab Notes. Подписаться можно по ссылке: @ConversionLabNotes.