pvalue calculate

HI,
Probably ?pnorm
x1<-mean(x)
x1
[1] 25.5

pnorm(25.5,mean=300)

[1] 0


A.K.







----- Original Message -----
From: Mary Kindall <mary.kindall at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Sunday, July 22, 2012 3:37 PM
Subject: [R] pvalue calculate

I have a value
a=300

observation (x) = sample(1:50)

How to find a p-value from this. I need to show that "a" is different fom
mean(x).
Thanks

-------------
Mary Kindall
Yorktown Heights, NY
USA

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