Hello everyone,
I'm currently testing 5 different landing pages with a offer that has an acceptable conversion rate, to find the best one.
This are my results:

Having spent U$200; Should I continue reaching for statistic significance (>90% probability of being best), or just conclude that they are all similar and pick one to test more offers?
Thanks in advance.
What matuloo said.
When you see a situation like this where there are 2 or more split test candidates going head to head, you can just pick an arbitrary lander and use that to test more offers.
When you find a profitable offer, you can rotate the other landers back in to reduce burnout like matuloo suggested.
Or, you can test more new landers or variations to get the CR up. But if you're quite confident that the current landers already include the most popular landers that you have optimized for speed, then I would focus solely on testing offers until I find a profitable one.
It doesn't mean you won't be able to massively increase CR by testing more landers or lander variations. Again, it depends on how confident you are in your current landers. If you are fairly confident, then chances are further testing won't yield as much improvement as testing more offers will.
Hope that makes sense! And you have my condolences...it doesn't happen a lot that ALL your landers would go head to head like that. That's a real money-suck.
Amy
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Can't thank you guys enough. Your help is really appreciated.
If the LPs are fairly similar Amy and Matej have covered it.
However if they’re different enough I’d go and dive in with a second layer being OS or Browser to see if you can see any pattern there and maybe one lander converts better in an OS than another.
4 conversions each though wouldn’t be enough to decide IMO.
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