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question about the 10% condition

So I'm kind of confused about the 10% condition. My book says You should use the formula in the picture (Standard Deviation/√sample#)for the standard deviation of *xbar *onlywhen the population is at least 10 times as large as the sample (the 10%condition).

so the number that you get needs to be or greater than .10?????

PLEASE HELP ITS REALLY ANNOYING

Re: question about the 10% condition

Hey asilvester635.

Can you point out in your book where it introduces the 10% condition and the context that this is in?