Std dev or Std Error?

#1
Hi
When reporting means, is it better to report standard deviation or standard error of the means?

Also, if I divide a mean by a number (e.g. mean weekly income by divided by 7 to get mean daily income), is it valid to also divide the std dev or error by the same number?

Thanks
 

JohnM

TS Contributor
#2
If you're just reporting for the sake of showing variability, then use standard deviation - the std err of the mean is really only useful when you go to compute confidence intervals and doesn't hold meaning on its own.

Answer to 2nd question - no.