# st: Linear regression; where is the correlation coefficient

 From "Carlo Georges" <[email protected]> To <[email protected]> Subject st: Linear regression; where is the correlation coefficient Date Sun, 10 Aug 2008 18:03:11 +0200

```It is rather straight forward to do a linear regression, but i ckecked lots
of options but coul not find the r, deriving it from R(square) is a bit
tedious.
Is there a way to include the regession equation, in the graph as with
Excel.

Is it possible to print the confidence interval for a correlation
coefficient

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Martin Weiss
Sent: Freitag, 8. August 2008 09:55
To: [email protected]
Subject: st: RE: swilk test Ho:

Well, your H0 is correct. The interpretation of test results is more
intricate, though. Non-rejection of the null does not imply that the data
are normally distributed; it does mean that you do not find convincing
evidence against the assertion that they derive from a normal distribution.
Note that the 95% confidence level that you are implying in your post means
that you will falsely reject the null in 5% of your tests. The information
that tests such as -swilk- provide is less than most users imagine...

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Carlo Georges
Sent: Friday, August 08, 2008 9:35 AM
To: [email protected]
Subject: st: swilk test Ho:

In using the shapiro wilk test for testing normality, is it correct that the
H0 (NULL hypothsis) is :H0 data are normally distributed, so when p< 0,05 we
reject Ho and data are not normally distributed.
Conversely if p> 0,05 data are normally distributed.

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```