# st: AW: R: Fw: Calculating a confidence interval for population variance based upon sample.

 From "Martin Weiss" To Subject st: AW: R: Fw: Calculating a confidence interval for population variance based upon sample. Date Mon, 1 Feb 2010 16:14:00 +0100

```<>

Make that

*************
bootstrap r(Var), reps(50) : sum A
*************

Otherwise, no result is returned (and no error, either...).

HTH
Martin

-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Carlo Lazzaro
Gesendet: Montag, 1. Februar 2010 16:06
An: statalist@hsphsun2.harvard.edu
Cc: 'Carl Mastropaolo'
Betreff: st: R: Fw: Calculating a confidence interval for population
variance based upon sample.

Dear Carl,
are you looking for something like the following example (flag: Stata
9.2/SE)?
--------------begin example--------------
set obs 10
g A=uniform()
sum A
bootstrap r(Var), reps(50) : sum
--------------end example--------------

HTH and Kind Regards,
Carlo
-----Messaggio originale-----
Da: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Carl Mastropaolo
Inviato: lunedì 1 febbraio 2010 15.47
A: statalist@hsphsun2.harvard.edu
Oggetto: st: Fw: Calculating a confidence interval for population variance
based upon sample.

Hi

I have STATA10.

I can not figure out how to calculate a simple confidence interval for a
population variance
based upon sample data.  STATA will calculate the sample standard deviation,

but I can not figure out how to compute a confidence interval for the
population standard deviation.  Is there a command which will do this?

Any help?

Thanx,
Carl

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/
```