R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> x <- c(19,25,17,22,21,26,20,14,23,20,22,15,20,22,20,28,25,26,17,23,13,24,14,22,23,22,24,21,23,22,21,26,15,25,17,25,27,25,19,26,20,20,18,18,19,23,17,23,23,11,18,24,16,24,24,21,25,22,21,24,24,21,18)
> par3 = '20'
> par2 = '0.95'
> par1 = 'two.sided'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Dr. Ian E. Holliday
> #To cite this work: Ian E. Holliday, 2009, YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: 
> #Technical description: 
> par2 <- as.numeric(par2)
> par3 <- as.numeric(par3)
> (tt <- t.test(x,mu=par3,alternative=par1,conf.level=par2))

	One Sample t-test

data:  x 
t = 2.4775, df = 62, p-value = 0.01597
alternative hypothesis: true mean is not equal to 20 
95 percent confidence interval:
 20.22381 22.09365 
sample estimates:
mean of x 
 21.15873 

> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'One Sample t-test',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'H0',header=TRUE)
> a<-table.element(a,tt$null.value)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Alternative',header=TRUE)
> a<-table.element(a,tt$alternative)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'CI',header=TRUE)
> a<-table.element(a,par2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Sample Mean',header=TRUE)
> a<-table.element(a,mean(x))
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'T-Test',header=TRUE)
> a<-table.element(a,tt$statistic)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'DF',header=TRUE)
> a<-table.element(a,tt$parameter)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'P-Value',header=TRUE)
> a<-table.element(a,tt$p.value)
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/1ixqz1319536446.tab") 
> 
> 
> 
> proc.time()
   user  system elapsed 
  0.216   0.034   0.242