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1998 Feb 22
0
R-beta: t.test in R
RE t.test in R
I objected a day or two ago to the behaviour of the one-sample t.test in R
where it is easy to generate a "confidence interval" for the mean of the
population
which does not contain the sample mean, in the case where the null
hypothesis is
rejected. It now appears that the same behaviour is latent in the code for
the two-sample version of this test. The relevant lines
2004 Nov 24
3
T-test syntax question
Hi.
I'd like to do a t-test to compare the Delta values of items with Crit=1
with Delta values of items with Crit=0. What is the t.test syntax?
It should produce a result like this below (I can't get in touch with the
person who originally did this for me)
Welch Two Sample t-test
data: t1$Delta by Crit
t = -3.4105, df = 8.674, p-value = 0.008173 alternative hypothesis: true