arc/notes
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

vault backup: 2024-01-29 14:17:28

Browse Source
This commit is contained in:
zleyyij 2024-01-29 14:17:28 -07:00
parent d1cc224b44
commit 8c9fe961d8
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
education/statistics/Sampling.md
View File

@ -72,7 +72,9 @@ Remember that the *parameter* is the *number* that actually describes the popula
For any unknown average, the probability histogram of the sample averages will be shaped like the normal curve and centered at the true average with a standard deviation equal to $SE_{ave}$.
$$ sample_{ave} \pm 2 * se_{ave} $$
$$ sample_{ave} \pm 2 * SE_{ave} $$
This equation should be a review:
$$ SE_{ave} = \frac{SD}{\sqrt{size\space samp}} $$
The above equation will give you an interval that you can be 95% confident that the true random will be within that point.
95% does *not* mean that 95% of the data is in the interval, it just means we are 95% confident that the actual point is going to lie within the range specified.
95% does *not* mean that 95% of the data is in the interval, it just means we are 95% confident that the actual point is going to lie within the range specified.