1. ## Law

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 ?

2. 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 ?

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

4. 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.