SOLUTION: you want to obtain a sample to estimate the population proportion you would like to be at 99.9% confident that your estimate is within 4% of the true population proportion how larg
Question 1176083: you want to obtain a sample to estimate the population proportion you would like to be at 99.9% confident that your estimate is within 4% of the true population proportion how large of a sample size is required?
n= Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Hi
Using p = .5 as an example when mean not known.
99.9% confident ( z = 3.09 ) invNorm(.999)
within 4%
z = 3.29 (two tailed)
n =
n = = 1492 (Rounded up to nearest whole number)
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