Estimate of variance in mean of one population removed from another


New Member

Thanks for looking at my post!

I have a some 40,000 items for which I have calculated the mean and standard deviation of a property, specifically density.

From this original 40,000 items, aliquots of several thousand items will be removed for use. I would like to understand what the likely minimum and maximum means of the aliquots will be. It feels kind of like a power of analysis type operation to me, but i'd really appreciate some guidance.

Thanks again,