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Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_hypothesisvariance4.wasp
Title produced by softwareTesting Variance - Confidence Intervals for Population Variance
Date of computationThu, 13 Oct 2011 16:58:40 -0400
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2011/Oct/13/t1318539602v92uajz6i88ydav.htm/, Retrieved Mon, 29 Apr 2024 05:45:04 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=129210, Retrieved Mon, 29 Apr 2024 05:45:04 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact429

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Testing Variance - Confidence Intervals for Population Variance] [] [2011-10-13 20:58:40] [17c22af36c2f732ea8df6410d3044a2e] [Current]
- R P     [Testing Variance - Confidence Intervals for Population Variance] [paper 2012] [2012-12-11 16:30:51] [7722d8427d2b2c713c1f0d5525f2f86c]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2012-12-12 14:30:05] [07135448e3e28ff93d39332c64d7f130]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2012-12-16 10:09:53] [391561951b5d7f721cfaa4f5575ab127]
- R       [Testing Variance - Confidence Intervals for Population Variance] [WS4 variantie twe...] [2012-12-16 13:36:06] [f8ee2fa4f3a14474001c30fec05fcd2b]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [Paper - two sampl...] [2012-12-18 18:55:12] [00d51cc5abcfaf80a667f39a85fc0ddc]
- R       [Testing Variance - Confidence Intervals for Population Variance] [] [2012-12-19 20:01:30] [9d6050326bbbd058eed49c2dec5f39c1]
- R P     [Testing Variance - Confidence Intervals for Population Variance] [Paper: One sample...] [2012-12-21 14:40:16] [081ff4808467d7c84e980fa7f896f721]
- RMPD    [Paired and Unpaired Two Samples Tests about the Mean] [Paper: unpaired t...] [2012-12-21 15:32:23] [081ff4808467d7c84e980fa7f896f721]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-22 08:18:53] [2b9d0c54c8c845c625e475ed5f1f3af1]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-22 13:37:59] [d253a55552bf9917a397def3be261e30]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [Vraag8 D] [2014-10-22 13:49:41] [36781f05c04c55e165b348994b753b95]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-22 14:50:51] [eee95947b6243a1febfcd5f41483d733]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [WS4 Q8] [2014-10-22 15:03:04] [bcf5edf18529a33bd1494456d2c6cb9a]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-22 16:00:33] [99723d3e379f668157309b7b2091b15d]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-22 16:19:02] [bcf5edf18529a33bd1494456d2c6cb9a]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-22 17:07:42] [1a6d42b46b3d01bc960fcfb45e99fecd]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [13] [2014-10-23 08:14:11] [9378e2688aa9dcfd1390615d31e9d404]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-23 14:04:04] [dd7a37d66cc3f8699a204e53c0324369]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-23 17:16:43] [8d160a85bfd9526a7d0e42afc5fb569b]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-23 18:18:35] [02fb6cbf799bcf1e525e4e01c2f27ada]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [ws4 q10] [2014-10-23 19:36:57] [8523551e1e4e3cbe97fa25692e177b2e]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [] [2014-10-23 21:10:11] [765bd0d5d4a0c852014c120c6930661d]
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Dataset

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R Server'Gertrude Mary Cox' @ cox.wessa.net

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 0 seconds \tabularnewline
R Server & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=129210&T=0

[TABLE]
[ROW][C]Summary of computational transaction[/C][/ROW]
[ROW][C]Raw Input[/C][C]view raw input (R code) [/C][/ROW]
[ROW][C]Raw Output[/C][C]view raw output of R engine [/C][/ROW]
[ROW][C]Computing time[/C][C]0 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=129210&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=129210&T=0

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R Server'Gertrude Mary Cox' @ cox.wessa.net






Testing Variance - Confidence Intervals for Population Variance
Sample size63
Sample variance13.7808
Confidence interval0.65
Type of IntervalLeft tailRight tail
Two-sided confidence interval at 0.6511.823086367816416.5691501896893
Left one-sided confidence interval at 0.6513.0051331313834+inf
Right one-sided confidence interval at 0.65014.9452900354091
more information about confidence interval

\begin{tabular}{lllllllll}
\hline
Testing Variance - Confidence Intervals for Population Variance \tabularnewline
Sample size & 63 \tabularnewline
Sample variance & 13.7808 \tabularnewline
Confidence interval & 0.65 \tabularnewline
Type of Interval & Left tail & Right tail \tabularnewline
Two-sided confidence interval at  0.65 & 11.8230863678164 & 16.5691501896893 \tabularnewline
Left one-sided confidence interval at  0.65 & 13.0051331313834 & +inf \tabularnewline
Right one-sided confidence interval at  0.65 & 0 & 14.9452900354091 \tabularnewline
more information about confidence interval \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=129210&T=1

[TABLE]
[ROW][C]Testing Variance - Confidence Intervals for Population Variance[/C][/ROW]
[ROW][C]Sample size[/C][C]63[/C][/ROW]
[ROW][C]Sample variance[/C][C]13.7808[/C][/ROW]
[ROW][C]Confidence interval[/C][C]0.65[/C][/ROW]
[ROW][C]Type of Interval[/C][C]Left tail[/C][C]Right tail[/C][/ROW]
[ROW][C]Two-sided confidence interval at  0.65[/C][C]11.8230863678164[/C][C]16.5691501896893[/C][/ROW]
[ROW][C]Left one-sided confidence interval at  0.65[/C][C]13.0051331313834[/C][C]+inf[/C][/ROW]
[ROW][C]Right one-sided confidence interval at  0.65[/C][C]0[/C][C]14.9452900354091[/C][/ROW]
[ROW][C]more information about confidence interval[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=129210&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=129210&T=1

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Testing Variance - Confidence Intervals for Population Variance
Sample size63
Sample variance13.7808
Confidence interval0.65
Type of IntervalLeft tailRight tail
Two-sided confidence interval at 0.6511.823086367816416.5691501896893
Left one-sided confidence interval at 0.6513.0051331313834+inf
Right one-sided confidence interval at 0.65014.9452900354091
more information about confidence interval


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 63 ; par2 = 13.7808 ; par3 = 0.65 ;
Parameters (R input):
par1 = 63 ; par2 = 13.7808 ; par3 = 0.65 ;
R code (references can be found in the software module):
par1<-as.numeric(par1)
par2<-as.numeric(par2)
par3<-as.numeric(par3)
df <- par1 - 1
halfalpha <- (1 - par3) / 2
ub <- par2 * df / qchisq(halfalpha,df)
ua <- par2 * df / qchisq(1-halfalpha,df)
ua
ub
ur <- par2 * df / qchisq(1-par3,df)
ur
ul <- par2 * df / qchisq(par3,df)
ul
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,hyperlink('ht_variance.htm','Testing Variance - Confidence Intervals for Population 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,'Sample variance',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('ht_variance.htm#ex4', 'more information about confidence interval','example'),3,TRUE)
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')