How much statistical verification do Indie Hackers do?

We all only have so many hours in the day, and doing any sort of statistical modelling of various things take time, learning how to do it takes time. Also so many of the things in business are incredibly difficult to quantify.

How much experience do you have with statistics, and how much do you apply it to your business?

As someone from an academic-ish background, the real world is far harder to quantify than we like to think, and knowing when and where to put this effort is valuable knowledge.

For companies based around ML products, verification needs to happen on the model level to ensure quality of your product also. Is this something which you spend any time on?

I'd love to hear from the community on this topic!