What is a p value and a null hypothesis in scientific research and how significant are they

Question

I’m starting to get into science a lot more these days but I do not know what p values and null hypothesis are.

Appreciate the help. Thank you.

In: Other

Answer 1

And just to add, in most of science, we need a p-value of less than .05, which means we’re only accepting a 5 percent chance of being wrong (saying there’s an effect when there isn’t one).