4 ms·

>It's impossible to verify 1. Determine sales rate 2. Deploy ads 3. Determine delta sales Am I missing something?

• deleted 3y ago
  [deleted]
• htrp 3y ago
  Confounding effects
  • deleted 3y ago
    [deleted]
  • stemlord 3y ago
    Wouldn't that be a good reason not to spend money on ads?