Which hand do you use?

[k6dgw]

Thanks to all who have responded to the "Handedness" survey (49) so
far.  I'm going to be in Reno Fri - Sun (Va Hospital appt and weekend
with with #2 son and family) .  Still time to get included ... I'm going
to publish the results on Tue, 17 May.

Please '86' my statement that comments will probably be ignored.  They
are very interesting, and I've changed my mind!  Not sure how to use
them yet, but they are enlightening.

Out of 49 respondents, and a world average of 10% left-handers (that
would be 4.9%), it seems my friend might have been right.  Either the
fraction of hams who are "sort of" to "really" left-handed is larger
than 10%, or possibly it's because we're mainly male?

Stay tuned

Fred K6DGW
Auburn CA CN98lw

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[Mark J. Schreiner]

Of course the results could be skewed since it is not a completely
random survey as well.  That is, you are tallying results from only
those who responded.  Maybe those folk who are left handed felt more
compelled to respond than those who are right handed.  Interesting,
nonetheless, as to your results and I'll be anxious to see the final
tallies.

Mark, NK8Q
Right Handed, Iambic B & Straight Key, non-Bug user.



Fred Jensen wrote:

>Thanks to all who have responded to the "Handedness" survey (49) so
>far.  I'm going to be in Reno Fri - Sun (Va Hospital appt and weekend
>with with #2 son and family) .  Still time to get included ... I'm going
>to publish the results on Tue, 17 May.
>
>Please '86' my statement that comments will probably be ignored.  They
>are very interesting, and I've changed my mind!  Not sure how to use
>them yet, but they are enlightening.
>
>Out of 49 respondents, and a world average of 10% left-handers (that
>would be 4.9%), it seems my friend might have been right.  Either the
>fraction of hams who are "sort of" to "really" left-handed is larger
>than 10%, or possibly it's because we're mainly male?
>
>Stay tuned
>
>Fred K6DGW
>Auburn CA CN98lw
>
>_______________________________________________
>Elecraft mailing list
>Post to: [hidden email]
>You must be a subscriber to post to the list.
>Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft   
>
>Help: http://mailman.qth.net/subscribers.htm
>Elecraft web page: http://www.elecraft.com
>
>  
>

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[Craig Rairdin]

> Thanks to all who have responded to the "Handedness" survey (49) so
> far.
>
> Out of 49 respondents, and a world average of 10% left-handers (that
> would be 4.9%), it seems my friend might have been right.  Either
> the fraction of hams who are "sort of" to "really" left-handed is
> larger than 10%, or possibly it's because we're mainly male?

The number of lefties in the general population may be closer to 13%.

In addition to problems with your sample (your respondents choose
themselves, which isn't the greatest sampling method) the other problem is
that your sample size is too small to draw conclusions from. If you get 100
responses you can be 90% sure that the actual percentage of lefties is +/-
5.53%. So if you see 10 out of 100 (assuming your sample is truly random,
which it's not) then you can be 90% sure that the actual value is between
about 4% and 16%. That's quite a spread.

If you want even more confidence -- say 99% -- you're in bigger trouble.
You'll need a sample size of 7562 to be accurate to +/- 1%. With your
current sample size of 49, if you get a result of 13 lefties you can be 99%
certain that the actual percentage of left-handed hams is between 1% and
25%!

Craig
NZ0R
N622T

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com