If not, why don't you kill your project?
Does your empirical result survive after trim by 2.5% ?
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You are a fuccing idiot (or an undergrad)! It is the whole distribution that matters. You might as well lose results by chopping off the middle 5%. I bet you never heard of bootstrap. What do they teach you in your fenance/accounting department?? Seriously, this forum is literally turning to a cesspool!
If not, why don't you kill your project?