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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> par3 = '0.65'
> par2 = '13'
> par1 = '63'
> #'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)
> df <- par1 - 1
> halfalpha <- (1 - par3) / 2
> ua <- qchisq(halfalpha,df) * par2 / df
> ub <- qchisq(1-halfalpha,df) * par2 / df
> ua
[1] 10.81229
> ub
[1] 15.15259
> ul <- qchisq(1-par3,df) * par2 / df
> ul
[1] 11.98708
> ur <- qchisq(par3,df) * par2 / df
> ur
[1] 13.77536
> 
> #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_variance.htm','Testing Variance - Confidence Intervals for Sample Variance','learn more about Statistical Hypothesis Testing about the Variance'),3,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Sample size',header=TRUE)
> a<-table.element(a,par1,2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Null hypothesis (H0)',header=TRUE)
> a<-table.element(a,par2,2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Confidence interval',header=TRUE)
> a<-table.element(a,par3,2)
> 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 ',par3), 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 ',par3), 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 ',par3), header=TRUE)
> a<-table.element(a,'0')
> 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_variance.htm#ex3', '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/1t8t61289502890.tab") 
> 
> 
> 
> proc.time()
   user  system elapsed 
  0.192   0.030   0.231