I have actually been studying and using statistics a lot in my career, but I still struggle with finding a simply way to explain what exactly is p-value.
In: Mathematics
p-value (probability value) is a representation of how likely it would be that a test statistic would arise when your null hypothesis is true.
So, I say “gravity doesnt exist” as my null hypothesis.
if my p-value was say .95, it would mean there’s a 95% chance that my test statistic could be produced if gravity didn’t exist. if it was .05 then my statistic only has a 5% chance of being possible if it were true gravity didn’t exist, so the data in my sample must have came about because gravity does exist.
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