R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> par4 = '0.95'
> par3 = '20'
> par2 = '63'
> par1 = '0.36'
> #'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)
> par3<-as.numeric(par3)
> par4<-as.numeric(par4)
> sigma <- sqrt(par1)
> sqrtn <- sqrt(par2)
> ua <- par3 - abs(qnorm((1-par4)/2))* sigma / sqrtn
> ub <- par3 + abs(qnorm((1-par4)/2))* sigma / sqrtn
> ua
[1] 19.85184
> ub
[1] 20.14816
> ul <- par3 - qnorm(par4) * sigma / sqrtn
> ul
[1] 19.87566
> ur <- par3 + qnorm(par4) * sigma / sqrtn
> ur
[1] 20.12434
> 
> #Note: the /var/www/html/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/www/html/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,hyperlink('http://www.xycoon.com/ht_mean_knownvar.htm','Testing Population Mean with known Variance','learn more about Statistical Hypothesis Testing about the Mean when the Variance is known'),3,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Population variance',header=TRUE)
> a<-table.element(a,par1,2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Sample size',header=TRUE)
> a<-table.element(a,par2,2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Sample mean',header=TRUE)
> a<-table.element(a,par3,2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Confidence interval',header=TRUE)
> a<-table.element(a,par4,2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Type of Interval',header=TRUE)
> a<-table.element(a,'Left tail',header=TRUE)
> a<-table.element(a,'Right tail',header=TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,paste('Two-sided confidence interval at ',par4), header=TRUE)
> a<-table.element(a,ua)
> a<-table.element(a,ub)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,paste('Left one-sided confidence interval at ',par4), header=TRUE)
> a<-table.element(a,ul)
> a<-table.element(a,'+inf')
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,paste('Right one-sided confidence interval at ',par4), header=TRUE)
> a<-table.element(a,'-inf')
> a<-table.element(a,ur)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a, hyperlink('http://www.xycoon.com/ht_mean_knownvar.htm#ex5', 'more information about confidence interval','example'),3,TRUE)
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/www/html/rcomp/tmp/1rslz1289500698.tab") 
> 
> 
> 
> proc.time()
   user  system elapsed 
  0.189   0.032   0.221