mercedes2014
New member
- Joined
- Mar 12, 2014
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Hi, I'm having trouble finding the minimum sample size on this question:
Find the minimum sample size required to estimate a population proportion to within 5% with 98% confidence, when the population proportion is expected to be between 34% and 44%.
So far, i have that n=(2.326)^2(o^2/e^2) ..... I cannot figure out what to put for Sigma.. and standard of error would be .05 (sq that it would be .0025)....
so n=(5.41.0276)(sigma sq/.0025)
Thanks for any help.
-Mercedes
Find the minimum sample size required to estimate a population proportion to within 5% with 98% confidence, when the population proportion is expected to be between 34% and 44%.
So far, i have that n=(2.326)^2(o^2/e^2) ..... I cannot figure out what to put for Sigma.. and standard of error would be .05 (sq that it would be .0025)....
so n=(5.41.0276)(sigma sq/.0025)
Thanks for any help.
-Mercedes