Hi! Do you have any courses you could recommend, lectures, videos on AB testing? Or maybe coaches that could guide us through? I joined the GoodUI course thanks to recent GB recommendation, I wonder if there are more, that are maybe more about the stat fundamentals in testing. And at the same time practical, for example, most don't consider the price of the change and often I'd apply an insignificant slightly positive change just because it's free in terms of code and support. I don't care about being right, I care about the bottom line. Preferably materials that include sequential approaches, Bayesian tests. I really like the GB docs, really clear, practical, concise, but I'd like to go a bit deeper. At the same time posts by Ronny Kohavi with all the papers he mentions sound too deep or just nonsense, can't tell apart. We run hundreds of tests and have great results in growing business to $1M/mo. But at the same time we cannot really confirm that with our holdout tests and LTV trend lines. We're refining our processes and I'd love to acquire confidence in my knowledge and our approach to testing.

Our SEO manager recommended https://conversion-rate-experts.com for CRO improvements, we're going through the book right now as a team.

Thank you so much Cory!