Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: st: how to find the integral for a portion of a normal distribution.


From   "Buzz Burhans" <[email protected]>
To   <[email protected]>
Subject   RE: st: how to find the integral for a portion of a normal distribution.
Date   Mon, 3 May 2010 21:58:59 -0600

Mike, thanks for your help. Let me try to clarify what I want.  If I have a
trial where average response was 2.05 liters, sd 1.74,  What I want to find
is the cumulative volume of all responses >= 1; and the cumulative volume of
all responses <1  

Is that any clearer?

Thanks


Buzz Burhans, Ph.D. 

Dairy-Tech Group
So. Albany, VT / Twin Falls ID

Phone: 802-755-6842
Cell: 208-320-0829
Fax VT: 802-755-6842
Fax ID: 208-735-1289

Email: [email protected]

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Hollis,Michael E
Sent: Monday, May 03, 2010 9:36 PM
To: [email protected]
Subject: Re: st: how to find the integral for a portion of a normal
distribution.

I may be missing something here, but can't you simply use the normal  
distribution with mean=proportion z >= some threshold, q=1-p and  
variance p(1-p)/n?  No integration involved.

As I said, I might be missing something!

Sent from my iPhone

On May 3, 2010, at 7:58 PM, "Buzz Burhans" <[email protected]> wrote:

> of the observations <=1 from
*
*   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/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index