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| Zootal... |
 Posted: Wed Nov 04, 2009 11:31 pm |
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I'm doing a randomization test on a data set, and I'm not quite sure how to
interpret the results. Suppose I have two data sets with a known sample mean
difference, and I want to do a randomization test to test the null
hypothesis that the sample means are the same, u1 = u2.
Suppose the known sample mean difference is 5, ie. u1 is 25 and u2 is 30. I
do a bunch of tests(some arbitrary large number) and I find that 40% of the
tests give mean differences that are greater than or equal to +/- my known
sample mean of 5, or the sample mean difference in 40% of the tests is >= 5
or <= -5. This should give us a two-sided p value of 0.400.
This is where I'm not sure how to proceed. Exactly what does that mean, or
in other words, how would I intrepret these results? What does this p-value
of 0.400 mean, and how would I use it to determine whether or not to reject
the null hypothesis? |
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| Ken Pledger... |
| Posted: Thu Nov 05, 2009 2:38 pm |
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In article <vMadneZZccaXyG_XnZ2dnUVZ_uidnZ2d at (no spam) giganews.com>,
"Zootal" <usenet at (no spam) spam.zootal.nospam.com> wrote:
[quote]I'm doing a randomization test on a data set, and I'm not quite sure how to
interpret the results....
[/quote]
You may have better luck with your question in the <sci.stat.math>
news group.
Ken Pledger. |
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| Zootal... |
| Posted: Thu Nov 05, 2009 9:47 pm |
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"Ken Pledger" <ken.pledger at (no spam) mcs.vuw.ac.nz> wrote in message
news:ken.pledger-3A4601.08385506112009 at (no spam) news.eternal-september.org...
[quote]In article <vMadneZZccaXyG_XnZ2dnUVZ_uidnZ2d at (no spam) giganews.com>,
"Zootal" <usenet at (no spam) spam.zootal.nospam.com> wrote:
I'm doing a randomization test on a data set, and I'm not quite sure how
to
interpret the results....
You may have better luck with your question in the <sci.stat.math
news group.
Ken Pledger.
[/quote]
I actually did that, and did get a response - I posted it here also because
this group gets more traffic, and I've had good luck getting answers here.
You never know when or where someone who just happens to know the answer
will come across my postings, so please forgive the cross posting. |
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