Question: Find the following sample size. What sample size would be required to reduce the sampling means distribution's standard deviation to a half of what it

Find the following sample size.

What sample size would be required to reduce the sampling means distribution's standard deviation to a half of what it was for an SRS of 30? u=20.4 and standard deviation = 5.8

what sample size would be required to reduce the sampling proportion distribution's standard deviation to one third of what it was for an SRS of 85? p=.38

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