Simple question - need an urgent reply. I had a group of 52 panelists sample
and rate 2 separate products. Now I want to know if the mean ratings for the
2 products are significantly different. Do I use a paired or unpaired
t-test? Thanks in advance for any help.

On Feb 13, 8:23*pm, Pizza wrote:
* Simple question - need an urgent reply. I had a group of 52 panelists sample
and rate 2 separate products. Now I want to know if the mean ratings for the
2 products are significantly different. Do I use a paired or unpaired
t-test? Thanks in advance for any help.

If you want to get a fast reply, you should better to post to a
statistic group in Google not here
Choose a group from one of the following listing:
http://groups.google.com/groups/dir?...&q=statistics&

Paired t-test.

However Rasoul is right... this is not the right forum for this question.

"Rasoul Khoshravan" wrote:

On Feb 13, 8:23 pm, Pizza wrote:
Simple question - need an urgent reply. I had a group of 52 panelists sample
and rate 2 separate products. Now I want to know if the mean ratings for the
2 products are significantly different. Do I use a paired or unpaired
t-test? Thanks in advance for any help.

If you want to get a fast reply, you should better to post to a
statistic group in Google not here
Choose a group from one of the following listing:
http://groups.google.com/groups/dir?...&q=statistics&

On Feb 13, 9:36*am, Rasoul Khoshravan wrote:
If you want to get a fast reply, you should
better to post to a statistic group in Google

Ordinarily, I would agree with you. But in my experience, some of the
people in these Excel forums are much more helpful than the people in
the sci.stat.* newsgroups.

Sheeloo wrote on Fri, 13 Feb 2009 09:58:11 -0800:

However Rasoul is right... this is not the right forum for
this question.

"Rasoul Khoshravan" wrote:

On Feb 13, 8:23 pm, Pizza wrote:
Simple question - need an urgent reply. I had a group of
52 panelists sample and rate 2 separate products. Now I
want to know if the mean ratings for the 2 products are
significantly different. Do I use a paired or
unpaired t-test? Thanks in advance for any help.

If you want to get a fast reply, you should better to post to
a statistic group in Google not here Choose a group from one
of the following
listing: http://groups.google.com/groups/dir?...%3D46406&q=sta
tistics&

I think an appropriate group might have been suggested for a rather
simple question but it have been better answered by scanning an
elementary book on statistics. Posing the question in a ng. might
produce both help and rude comments.
--

James Silverton
Potomac, Maryland

Email, with obvious alterations: not.jim.silverton.at.verizon.not

"Pizza" wrote:

Simple question - need an urgent reply. I had a group of 52 panelists sample
and rate 2 separate products. Now I want to know if the mean ratings for the
2 products are significantly different. Do I use a paired or unpaired
t-test? Thanks in advance for any help.


Since I am using Excel Analysis Pak, I automatically went here for advice.
Consulted several textbooks, but they were not clear as far as the example I
cite. I'm doing this type of analysis for the 1st time and want to be sure
it's correct.In the past folks here have been more than happy to answers
questions - sorry if I inconvenienced anyone!!!

"joeu2004" wrote:

On Feb 13, 9:36 am, Rasoul Khoshravan wrote:
If you want to get a fast reply, you should
better to post to a statistic group in Google

Ordinarily, I would agree with you. But in my experience, some of the
people in these Excel forums are much more helpful than the people in
the sci.stat.* newsgroups.


Indeed - Thank You!

Pizza wrote on Fri, 13 Feb 2009 10:45:03 -0800:

On Feb 13, 9:36 am, Rasoul Khoshravan
wrote:
If you want to get a fast reply, you should
better to post to a statistic group in Google

Ordinarily, I would agree with you. But in my experience,
some of the people in these Excel forums are much more
helpful than the people in the sci.stat.* newsgroups.


I'm surprised that no one suggested using Excel help. There is a
considerable amount of material available by asking help on statistical
tests, especially "About statistical analysis tools".

--

James Silverton
Potomac, Maryland

Email, with obvious alterations: not.jim.silverton.at.verizon.not

On Feb 13, 10:43*am, Pizza wrote:
Consulted several textbooks, but they were not
clear as far as the example I cite. *I'm doing
this type of analysis for the 1st time and want
to be sure it's correct.

Which I thought was self-evident from the way you asked your question.


sorry if I inconvenienced anyone!!!

No apology needed. IMHO, anyone "inconvenienced" by a question posted
here and unwilling to offer a constructive response is not obligated
to read it, much less respond to it.

Sometimes, vectoring a person to another newsgroup or RTFM is the
right thing to do. But I don't think your inquiry rose to that
level. It was straight-forward and well-asked (succinct), and it
demonstrated a modicum of knowledge.

On Feb 13, 10:17*am, "James Silverton"
wrote:
I think an appropriate group might have been suggested
for a rather simple question but it have been better
answered by scanning an elementary book on statistics.
Posing the question in a ng. might produce both help
and rude comments.

This is the sort of non-constructive response that I expect to see in
the sci.stat.* newsgroups.

You are not obligated to respond to questions that you think are
"dumb", especially if you can only think of "rude comments" to make.

joeu2004 wrote on Fri, 13 Feb 2009 11:54:06 -0800 (PST):

On Feb 13, 10:17 am, "James Silverton"
wrote:
I think an appropriate group might have been suggested
for a rather simple question but it have been better
answered by scanning an elementary book on statistics.
Posing the question in a ng. might produce both help
and rude comments.

This is the sort of non-constructive response that I expect to
see in the sci.stat.* newsgroups.

Don't be ridiculous! It's a fair warning not a protest.

--

James Silverton
Potomac, Maryland

Email, with obvious alterations: not.jim.silverton.at.verizon.not