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Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_hypothesisvariance3.wasp
Title produced by softwareTesting Variance - Confidence Intervals for Sample Variance
Date of computationMon, 25 Oct 2010 21:55:20 +0000
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2010/Oct/25/t1288043645wt7valwo96c7ppn.htm/, Retrieved Sun, 11 May 2025 09:21:26 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=88625, Retrieved Sun, 11 May 2025 09:21:26 +0000
QR Codes:

Original text written by user:
IsPrivate?This computation is/was private until 2010-10-27
User-defined keywords
Estimated Impact273

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 Sample Variance] [] [2010-10-25 21:55:20] [d76b387543b13b5e3afd8ff9e5fdc89f] [Current]
-         [Testing Variance - Confidence Intervals for Sample Variance] [Workshop 4 questi...] [2010-10-29 11:36:30] [87d60b8864dc39f7ed759c345edfb471]
-           [Testing Variance - Confidence Intervals for Sample Variance] [W4-verbetering8.2] [2010-11-02 06:44:21] [48146708a479232c43a8f6e52fbf83b4]
-         [Testing Variance - Confidence Intervals for Sample Variance] [Vraag 8.2] [2010-11-18 18:46:09] [4f1a20f787b3465111b61213cdeef1a9]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [WS 4 - vraag 8 vr...] [2011-10-22 08:57:09] [6a3e51c0c7ab195427042dfaef1df5a0]
- R P     [Testing Variance - Confidence Intervals for Sample Variance] [WS 4 - vraag 8 ma...] [2011-10-22 08:58:45] [6a3e51c0c7ab195427042dfaef1df5a0]
- RM      [Testing Variance - Confidence Intervals for Sample Variance] [] [2012-10-05 17:51:44] [8fcd082199f7dbedf65d69a953eb5ad7]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [Vraag 8B] [2012-10-08 17:38:01] [bc2c61a583a6186666a33616ccc196e4]
- RMP     [Testing Variance - Critical Value (Region)] [WS 4 Q 8.3] [2012-10-23 08:49:11] [8c30f4dd45e15fd207e4faf2fdf6253e]
- R         [Testing Variance - Critical Value (Region)] [WS 4 Q 8.4] [2012-10-23 08:50:12] [8c30f4dd45e15fd207e4faf2fdf6253e]
- RMP         [Testing Variance - Confidence Intervals for Sample Variance] [Paper deel 2 vari...] [2012-11-20 16:49:20] [8c30f4dd45e15fd207e4faf2fdf6253e]
- R             [Testing Variance - Confidence Intervals for Sample Variance] [Paper - Variance] [2012-12-17 21:00:31] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM            [Minimum Sample Size - Testing Mean] [Paper - Sample size] [2012-12-17 21:28:08] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM D          [Paired and Unpaired Two Samples Tests about the Mean] [Paper - unpaired ...] [2012-12-17 22:11:20] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM D          [Paired and Unpaired Two Samples Tests about the Mean] [Paper ] [2012-12-17 22:16:23] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM D          [Paired and Unpaired Two Samples Tests about the Mean] [Paper - Paired] [2012-12-17 22:47:48] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM D          [Chi-Squared Test, McNemar Test, and Fisher Exact Test] [Paper - Chi squar...] [2012-12-17 23:07:41] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM D          [Chi-Squared Test, McNemar Test, and Fisher Exact Test] [Paper - exact pea...] [2012-12-17 23:14:33] [7dcdf88f8d4909016d1a598b3c226ce5]
- R             [Testing Variance - Confidence Intervals for Sample Variance] [] [2012-12-20 19:58:46] [74be16979710d4c4e7c6647856088456]
- RM            [Testing Variance - Confidence Intervals for Sample Variance] [] [2012-12-20 20:48:57] [74be16979710d4c4e7c6647856088456]
- RM          [Testing Variance - Confidence Intervals for Population Variance] [Paper deel 2 vari...] [2012-11-20 16:55:17] [8c30f4dd45e15fd207e4faf2fdf6253e]
- R             [Testing Variance - Confidence Intervals for Population Variance] [Paper - Variance 2] [2012-12-17 21:01:53] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM            [Testing Variance - Confidence Intervals for Population Variance] [] [2012-12-20 20:01:19] [74be16979710d4c4e7c6647856088456]
-   P         [Testing Variance - Critical Value (Region)] [Vrouwen variance ...] [2012-12-17 20:08:26] [7dcdf88f8d4909016d1a598b3c226ce5]
- R P       [Testing Variance - Critical Value (Region)] [Paper - Variance] [2012-12-17 20:07:14] [7dcdf88f8d4909016d1a598b3c226ce5]
- RM      [Testing Variance - Confidence Intervals for Population Variance] [variance populati...] [2012-12-04 18:26:30] [bb9c1d1bc63af35ef3129489f33fa7df]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [paper 2012] [2012-12-11 16:13:48] [7722d8427d2b2c713c1f0d5525f2f86c]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [paper 2012] [2012-12-11 16:28:47] [7722d8427d2b2c713c1f0d5525f2f86c]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [] [2012-12-12 14:29:39] [07135448e3e28ff93d39332c64d7f130]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [] [2012-12-16 10:08:38] [391561951b5d7f721cfaa4f5575ab127]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [] [2012-12-16 10:17:58] [391561951b5d7f721cfaa4f5575ab127]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [WS4 variantie 2zi...] [2012-12-16 13:34:41] [f8ee2fa4f3a14474001c30fec05fcd2b]
- R P     [Testing Variance - Confidence Intervals for Sample Variance] [Variance hypothese] [2012-12-19 15:54:53] [77d02b0cf2cecd023ffa9a06f056f18d]
- RMP       [Minimum Sample Size - Testing Mean] [Sample size] [2012-12-19 18:20:37] [77d02b0cf2cecd023ffa9a06f056f18d]
- R P         [Minimum Sample Size - Testing Mean] [Sample size 2] [2012-12-19 18:29:40] [77d02b0cf2cecd023ffa9a06f056f18d]
-   P           [Minimum Sample Size - Testing Mean] [sample size 3] [2012-12-19 18:35:39] [77d02b0cf2cecd023ffa9a06f056f18d]
-   P             [Minimum Sample Size - Testing Mean] [Sample size 4] [2012-12-19 18:41:24] [77d02b0cf2cecd023ffa9a06f056f18d]
- RMP     [Testing Variance - Confidence Intervals for Population Variance] [] [2012-12-19 18:03:09] [43bd65bee76289cab2ce37423d405966]
- R P       [Testing Variance - Confidence Intervals for Population Variance] [] [2012-12-21 20:54:56] [8c6900b6affe5ced50ee5724b2e31c80]
- R P       [Testing Variance - Confidence Intervals for Population Variance] [] [2012-12-21 23:31:11] [74be16979710d4c4e7c6647856088456]
- R       [Testing Variance - Confidence Intervals for Sample Variance] [] [2012-12-19 20:00:57] [9d6050326bbbd058eed49c2dec5f39c1]
- R P     [Testing Variance - Confidence Intervals for Sample Variance] [Paper: One sample...] [2012-12-21 14:38:20] [081ff4808467d7c84e980fa7f896f721]
- RM      [Testing Variance - Confidence Intervals for Sample Variance] [WS 4 vraag 8] [2013-10-30 16:30:58] [16ce55620e4b91ec00a4b56aea2a2582]
- R P     [Testing Variance - Confidence Intervals for Sample Variance] [Ws 4 vraag 8] [2013-10-30 16:34:50] [16ce55620e4b91ec00a4b56aea2a2582]
- RMP     [Testing Variance - Confidence Intervals for Sample Variance] [] [2014-10-22 08:18:15] [2b9d0c54c8c845c625e475ed5f1f3af1]
- RM      [Testing Variance - Confidence Intervals for Sample Variance] [] [2014-10-22 13:37:24] [d253a55552bf9917a397def3be261e30]
- RM      [Testing Variance - Confidence Intervals for Sample Variance] [] [2014-10-22 14:49:58] [eee95947b6243a1febfcd5f41483d733]
- RMP     [Testing Variance - Confidence Intervals for Sample Variance] [WS4 Q8] [2014-10-22 14:59:30] [bcf5edf18529a33bd1494456d2c6cb9a]
- RM      [Testing Variance - Confidence Intervals for Sample Variance] [] [2014-10-22 15:05:09] [eee95947b6243a1febfcd5f41483d733]

[Truncated]
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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 time1 seconds
R Server'Sir Ronald Aylmer Fisher' @ 193.190.124.24

\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 & 1 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ 193.190.124.24 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=88625&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]1 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Sir Ronald Aylmer Fisher' @ 193.190.124.24[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=88625&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=88625&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 time1 seconds
R Server'Sir Ronald Aylmer Fisher' @ 193.190.124.24






Testing Variance - Confidence Intervals for Sample Variance
Sample size63
Null hypothesis (H0)13
Confidence interval0.65
Type of IntervalLeft tailRight tail
Two-sided confidence interval at 0.6510.812286565637015.1525916690979
Left one-sided confidence interval at 0.6511.9870808512614+inf
Right one-sided confidence interval at 0.65013.7753607125852
more information about confidence interval

\begin{tabular}{lllllllll}
\hline
Testing Variance - Confidence Intervals for Sample Variance \tabularnewline
Sample size & 63 \tabularnewline
Null hypothesis (H0) & 13 \tabularnewline
Confidence interval & 0.65 \tabularnewline
Type of Interval & Left tail & Right tail \tabularnewline
Two-sided confidence interval at  0.65 & 10.8122865656370 & 15.1525916690979 \tabularnewline
Left one-sided confidence interval at  0.65 & 11.9870808512614 & +inf \tabularnewline
Right one-sided confidence interval at  0.65 & 0 & 13.7753607125852 \tabularnewline
more information about confidence interval \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=88625&T=1

[TABLE]
[ROW][C]Testing Variance - Confidence Intervals for Sample Variance[/C][/ROW]
[ROW][C]Sample size[/C][C]63[/C][/ROW]
[ROW][C]Null hypothesis (H0)[/C][C]13[/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]10.8122865656370[/C][C]15.1525916690979[/C][/ROW]
[ROW][C]Left one-sided confidence interval at  0.65[/C][C]11.9870808512614[/C][C]+inf[/C][/ROW]
[ROW][C]Right one-sided confidence interval at  0.65[/C][C]0[/C][C]13.7753607125852[/C][/ROW]
[ROW][C]more information about confidence interval[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=88625&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=88625&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 Sample Variance
Sample size63
Null hypothesis (H0)13
Confidence interval0.65
Type of IntervalLeft tailRight tail
Two-sided confidence interval at 0.6510.812286565637015.1525916690979
Left one-sided confidence interval at 0.6511.9870808512614+inf
Right one-sided confidence interval at 0.65013.7753607125852
more information about confidence interval


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 63 ; par2 = 13 ; par3 = 0.65 ;
Parameters (R input):
par1 = 63 ; par2 = 13 ; 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
ua <- qchisq(halfalpha,df) * par2 / df
ub <- qchisq(1-halfalpha,df) * par2 / df
ua
ub
ul <- qchisq(1-par3,df) * par2 / df
ul
ur <- qchisq(par3,df) * par2 / df
ur
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,hyperlink('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('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='mytable.tab')