Thanks berwin. See what I sent to Ben. I better start looking up my
stat textbooks or going back to class before I start using stat terms.
You guys are on top of things !!!!.
On Sat, Mar 21, 2009 at 10:50 PM, Berwin A Turlach wrote:
G'day Mark,
On Sat, 21 Mar 2009 22:08:21 -0500 (CDT)
markle...@verizon.net wrote:
by definition, the one tailed p-value has to be <= 0.5
Can you point me to such a definition? I was not aware that this is
the case. :)
And your example:
A) Suppose you are testing
Ho: u = u_0
H1 u > u_0
and your t-stat was -0.3 Then prob( T > t_0) = 0.62 so your pvalue
would be 0.62.
seems to contradict your statement. A one sided-test, hence a
one-tailed p-value, which yields a p-value larger than 0.5.
But, perhaps, we are just using different terminology.
Cheers,
Berwin
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