Teacher2Teacher |
Q&A #3831 |
From: Liz Colonna
To: Teacher2Teacher Service
Date: May 01, 2000 at 14:38:22
Subject: Statistics
When using confidence intervals to estimate the population mean for large samples and small samples, the cut-off number for sample size is n=30 for large samples. What was the process that mathematicians used to come up with 30 as the cut-off point? My students thought that a large sample would be in the hundreds, not a number as small as 30. Thanks!
Post a public
discussion message
Ask Teacher2Teacher a new question
[Privacy Policy] [Terms of Use]
Math Forum Home ||
The Math Library ||
Quick Reference ||
Math Forum Search