I'm a CompBio PhD student, and my experience is that folks in that field are much more careful with statistics than in, say, molecular biology labs, but it varies from lab to lab. My PI is exceedingly meticulous about stats -- for instance, we don't report p-values, but rather entire distributions -- but that's because our work is all in silico, so it's easy to run tons of replicate simulations. Wet lab work that's finicky should definitely be held to high statistical standards, but I don't think it's fair to presume everyone in the field guilty until proven innocent.