I'm looking for the confidence interval (of the mean). I have the mean, the standard deviation, and the population is very large. But, I have no idea what law the distribution is following. Can I still find the confidence interval of the mean ?

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Originally Posted by AnnM I'm looking for the confidence interval (of the mean). I have the mean, the standard deviation, and the population is very large. But, I have no idea what law the distribution is following. Can I still find the confidence interval of the mean ? Read this.

So... even if I don't know the law, according to the central limit theorem, the distribution will approach a normal distribution.

Originally Posted by AnnM So... even if I don't know the law, according to the central limit theorem, the distribution will approach a normal distribution. Since n is large (I assume n > 50 or so?), yes.

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