# Thread: Central Limit Theorem: Approximating Sample Mean

1. ## Central Limit Theorem: Approximating Sample Mean

Hi,

I'm having trouble with this problem:
http://users.encs.concordia.ca/~b_zgeb/problem10.png

This is my work so far:
The problem is the $\theta(30)$. 30 seems like a ridiculous value for normal distribution and I have a feeling it's supposed to be 3. Any thoughts?