R version 2.11.1 (2010-05-31)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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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)
> par20 = ''
> par19 = ''
> par18 = ''
> par17 = ''
> par16 = ''
> par15 = ''
> par14 = ''
> par13 = ''
> par12 = ''
> par11 = ''
> par10 = ''
> par9 = ''
> par8 = ''
> par7 = ''
> par6 = ''
> par5 = ''
> par4 = ''
> par3 = ''
> par2 = '20'
> par1 = '0.65'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: AUTHOR(S), (YEAR), 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: Office for Research, Development, and Education
> #Technical description: Write here your technical program description (don't use hard returns!)
> par1 <- as.numeric(par1)
> par2 <- as.numeric(par2)
> len <- length(x)
> df <- len - 1
> sd <- sd(x)
> mx <- mean(x)
> 
> #Note: the /var/www/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/www/rcomp/createtable")
> 
> delta2 <- abs(qt((1-par1)/2,df)) * sd / sqrt(len)
> delta1 <- abs(qt((1-par1),df)) * sd / sqrt(len)
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Hypothesis Test about the Mean - Confidence Interval',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Sample size',header=TRUE)
> a<-table.element(a,len)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Sample standard deviation',header=TRUE)
> a<-table.element(a,sd)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Confidence',header=TRUE)
> a<-table.element(a,par1)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Null hypothesis',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,mx)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'2-sided Confidence Interval',header=TRUE)
> dum <- paste('[',mx-delta2)
> dum <- paste(dum,',')
> dum <- paste(dum,mx+delta2)
> dum <- paste(dum,']')
> a<-table.element(a,dum)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Left-sided Confidence Interval',header=TRUE)
> dum <- paste('[',mx-delta1)
> dum <- paste(dum,', +inf ]')
> a<-table.element(a,dum)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Right-sided Confidence Interval',header=TRUE)
> dum <- paste('[ -inf, ',mx+delta1)
> dum <- paste(dum,']')
> a<-table.element(a,dum)
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/www/rcomp/tmp/1sa651288125369.tab") 
> 
> 
> proc.time()
   user  system elapsed 
  0.220   0.120   0.307