# two-tailed> 0.05 / 2
[1] 0.025
# for the lower tail> qnorm(c(0.025), mean=0, sd=1, lower.tail=TRUE)
[1] -1.959964
# for the upper tail> qnorm(c(0.025), mean=0, sd=1, lower.tail=FALSE)
[1] 1.959964
On 3/30/06, ronggui <ronggui.huang at gmail.com>
wrote:> > qnorm(1-0.05/2)
> [1] 1.959964
> > qnorm(0.05/2,lower=F)
> [1] 1.959964
>
>
>
> 2006/3/31, XinMeng <xmeng at capitalbio.com>:
> > As to the standard normal sidtribution,if alpha=0.05(2 tailed),how can
I get the "u value" by using R command?
> >
> > p.s result: u value is 1.96.
> >
> > ______________________________________________
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> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
> >
>
>
> --
> ??????
> Deparment of Sociology
> Fudan University
>
>
>
> ______________________________________________
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>