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SOCR EduMaterials AnalysisActivities TwoIndepT - Revision history
2024-03-29T15:58:30Z
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IvoDinov at 20:16, 23 January 2009
2009-01-23T20:16:05Z
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<td colspan='2' style="background-color: white; color:black;">Revision as of 20:16, 23 January 2009</td>
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IvoDinov
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=8820&oldid=prev
IvoDinov at 19:43, 23 January 2009
2009-01-23T19:43:45Z
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Background==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>==<ins class="diffchange diffchange-inline">[[SOCR_EduMaterials_AnalysesActivities | SOCR Analysis]] - </ins>Two Independent Sample T-Test Background==</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Given two groups of data, not necessarily with same sample size, we'd like to test the null hpothesis that the two groups have equal mean. This is a parametric test.</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example (<del class="diffchange diffchange-inline">Poored </del>Sample Variance) ==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Given two groups of data, not necessarily with same sample size, we'd like to test the null hypothesis that the two groups have equal mean. This is a parametric test.</ins></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>We will demonstrate Two Independent T-Test with a SOCR built-in example.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example (<ins class="diffchange diffchange-inline">Pooled </ins>Sample Variance) ==</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Go to the [http://www.socr.ucla.edu/htmls/ana/TwoIndependentTTest_Analysis.html SOCR Two Independent Sample T-Test Applet]. </ins>We will demonstrate Two Independent T-Test with a SOCR built-in example.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>This example is based on the data taken from "Mathematical Statistics and Data Analysis" by John A. Rice, Second Edition, Ducbury Press, 1995. (Page 390) </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>This example is based on the data taken from "Mathematical Statistics and Data Analysis" by John A. Rice, Second Edition, Ducbury Press, 1995. (Page 390) </div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>'''2.''' Click on the "'''Mapping'''" button to get to the "'''Mapping'''" panel. Click on '''"ADD"''' under '''VARIABLE 1''' and to add '''A''', and click on '''ADD''' under '''VARIABLE 2''' to add '''B'''. This will add the variables for Two Independent Sample T-Test. We care about the difference, so which on goes to '''VARIABLE 1''' or '''VARIALBE 2''' is arbitrary. Here, the computer will set difference = Variable 2 - Variable 1. If you like the <del class="diffchange diffchange-inline">substraction </del>to go the other way around, simple assign '''VARIABLE 1''' and '''VARIABLE 2''' in the opposite way. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>'''2.''' Click on the "'''Mapping'''" button to get to the "'''Mapping'''" panel. Click on '''"ADD"''' under '''VARIABLE 1''' and to add '''A''', and click on '''ADD''' under '''VARIABLE 2''' to add '''B'''. This will add the variables for Two Independent Sample T-Test. We care about the difference, so which on goes to '''VARIABLE 1''' or '''VARIALBE 2''' is arbitrary. Here, the computer will set difference = Variable 2 - Variable 1. If you like the <ins class="diffchange diffchange-inline">subtraction </ins>to go the other way around, simple assign '''VARIABLE 1''' and '''VARIABLE 2''' in the opposite way. </div></td></tr>
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IvoDinov
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=5676&oldid=prev
Brian Trinity at 19:22, 9 January 2008
2008-01-09T19:22:51Z
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">http://simile.mit.edu/wiki/Random_RDFizer</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">http://qwiki.stanford.edu/wiki/Alex_Russel</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">http://writing.colostate.edu/blogs/view.cfm?blogid=27769</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">http://sea.unu.edu/wiki/index.php/Assessment_Techniques</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">http://wiki.linux.edu/doku.php?do=show&id=start</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">http://wiki.linux.edu/doku.php?id=ironpenguin:capabilities</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">http://june5thinitiative-wiki.hss.rpi.edu/index.php?title=How_To_Use_the_WIKI</ins></div></td></tr>
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Brian Trinity
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=5154&oldid=prev
Annie: /* Two Independent Sample T-Test Example */
2007-08-25T07:35:13Z
<p><span class="autocomment">Two Independent Sample T-Test Example</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 07:35, 25 August 2007</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Given two groups of data, not necessarily with same sample size, we'd like to test the null hpothesis that the two groups have equal mean. This is a parametric test.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Given two groups of data, not necessarily with same sample size, we'd like to test the null hpothesis that the two groups have equal mean. This is a parametric test.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example <ins class="diffchange diffchange-inline">(Poored Sample Variance) </ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>We will demonstrate Two Independent T-Test with a SOCR built-in example.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>We will demonstrate Two Independent T-Test with a SOCR built-in example.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>This example is based on the data taken from "Mathematical Statistics and Data Analysis" by John A. Rice, Second Edition, Ducbury Press, 1995. (Page 390) </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>This example is based on the data taken from "Mathematical Statistics and Data Analysis" by John A. Rice, Second Edition, Ducbury Press, 1995. (Page 390) </div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here's the steps of the activity:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here's the steps of the activity:</div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>'''1.''' Click on '''Two Independent Sample T-Test''' at the left panel's combo box.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>'''1.''' Click on '''Two Independent Sample T-Test <ins class="diffchange diffchange-inline">(Poored)</ins>''' at the left panel's combo box.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><center>[[Image:SOCR_AnalysisActivities_TwoIndepT_Chu_051707_Fig1.gif|700px]]</center></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><center>[[Image:SOCR_AnalysisActivities_TwoIndepT_Chu_051707_Fig1.gif|700px]]</center></div></td></tr>
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Annie
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=4722&oldid=prev
Annie: /* Two Independent Sample T-Test Example */
2007-08-06T22:07:34Z
<p><span class="autocomment">Two Independent Sample T-Test Example</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 22:07, 6 August 2007</td>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>'''2.''' Click on the "'''Mapping'''" button to get to the "'''Mapping'''" panel. Click on '''"ADD"''' under '''VARIABLE 1''' and to add '''A''', and click on '''ADD''' under '''VARIABLE 2''' to add '''B'''. This will add the variables for Two Independent Sample T-Test. We care about the difference, so which on goes to '''VARIABLE 1''' is arbitrary. Here, the computer will set difference = Variable 2 - Variable 1. If you like the substraction to go the other way around, simple assign '''VARIABLE 1''' and '''VARIABLE 2''' in the opposite way. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>'''2.''' Click on the "'''Mapping'''" button to get to the "'''Mapping'''" panel. Click on '''"ADD"''' under '''VARIABLE 1''' and to add '''A''', and click on '''ADD''' under '''VARIABLE 2''' to add '''B'''. This will add the variables for Two Independent Sample T-Test. We care about the difference, so which on goes to '''VARIABLE 1<ins class="diffchange diffchange-inline">''' or '''VARIALBE 2</ins>''' is arbitrary. Here, the computer will set difference = Variable 2 - Variable 1. If you like the substraction to go the other way around, simple assign '''VARIABLE 1''' and '''VARIABLE 2''' in the opposite way. </div></td></tr>
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Annie
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=4720&oldid=prev
Annie: /* Two Independent Sample T-Test Background */
2007-08-06T22:02:57Z
<p><span class="autocomment">Two Independent Sample T-Test Background</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 22:02, 6 August 2007</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Background==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Background==</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Given two groups of data, not necessarily with same sample size, we'd like to test the null hpothesis that the two groups have equal mean.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Given two groups of data, not necessarily with same sample size, we'd like to test the null hpothesis that the two groups have equal mean<ins class="diffchange diffchange-inline">. This is a parametric test</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example==</div></td></tr>
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</table>
Annie
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=4719&oldid=prev
Annie: /* Two Independent Sample T-Test Example */
2007-08-06T21:58:21Z
<p><span class="autocomment">Two Independent Sample T-Test Example</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 21:58, 6 August 2007</td>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test <del class="diffchange diffchange-inline">Example</del>==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test <ins class="diffchange diffchange-inline">Background</ins>==</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Given two groups of data, not necessarily with same sample size, we'd like to test the null hpothesis that the two groups have equal mean.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>We will demonstrate Two Independent <del class="diffchange diffchange-inline">Wilcoxon </del>Test with a SOCR built-in example.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">==Two Independent Sample T-Test Example==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>We will demonstrate Two Independent <ins class="diffchange diffchange-inline">T-</ins>Test with a SOCR built-in example.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>This example is based on the data taken from "Mathematical Statistics and Data Analysis" by John A. Rice, Second Edition, Ducbury Press, 1995. (Page 390) </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>This example is based on the data taken from "Mathematical Statistics and Data Analysis" by John A. Rice, Second Edition, Ducbury Press, 1995. (Page 390) </div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>On the right panel, first click on '''EXAMPLE 1''' and next click on "Data" to retreive the demonstrated example. This is the example we'll be looking at<del class="diffchange diffchange-inline">.Note that the data are difference of B - A</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>On the right panel, first click on '''EXAMPLE 1''' and next click on "Data" to retreive the demonstrated example. This is the example we'll be looking at. </div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><center>[[Image:SOCR_AnalysisActivities_TwoIndepT_Chu_051707_Fig2.gif|700px]]</center></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><center>[[Image:SOCR_AnalysisActivities_TwoIndepT_Chu_051707_Fig2.gif|700px]]</center></div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>'''2.''' Click on the "'''Mapping'''" button to get to the "'''Mapping'''" panel. Click on '''"ADD"''' under '''VARIABLE 1''' and to '''VARIABLE 2''' add the variables for Two Independent Sample T-Test. We care about the difference, so which on goes to '''VARIABLE 1''' is arbitrary. <del class="diffchange diffchange-inline">You can just add column '''A''' to '''VARIABLE 1''' and '''B''' to '''VARIABLE 2'''.</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>'''2.''' Click on the "'''Mapping'''" button to get to the "'''Mapping'''" panel. Click on '''"ADD"''' under '''VARIABLE 1''' and to <ins class="diffchange diffchange-inline">add '''A''', and click on '''ADD''' under </ins>'''VARIABLE 2''' <ins class="diffchange diffchange-inline">to add '''B'''. This will </ins>add the variables for Two Independent Sample T-Test. We care about the difference, so which on goes to '''VARIABLE 1''' is arbitrary. Here, the computer will set difference = Variable 2 - Variable 1. If you like the substraction to go the other way around, simple assign '''VARIABLE 1''' and '''VARIABLE 2''' in <ins class="diffchange diffchange-inline">the opposite </ins>way. </div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Here, the computer will set difference = Variable 2 - Variable 1. If you like the substraction to go the other way around, simple assign '''VARIABLE 1''' and '''VARIABLE 2''' in <del class="diffchange diffchange-inline">a different </del>way. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>'''3.''' Click on "'''Calculate'''" then "'''Result'''" to see the results.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>'''3.''' Click on "'''Calculate'''" then <ins class="diffchange diffchange-inline">click on </ins>"'''Result'''" to see the results.</div></td></tr>
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http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=4642&oldid=prev
Annie: /* Two Independent Sample T-Test Example */
2007-08-05T21:27:43Z
<p><span class="autocomment">Two Independent Sample T-Test Example</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Questions for students:''' By looking at the test results, what do you think about the data? What can you say about the two different shoe materials?</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Questions for students:''' By looking at the test results, what do you think about the data? What can you say about the two different shoe materials?</div></td></tr>
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Annie
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=4619&oldid=prev
Annie: /* Two Independent Sample T-Test Example */
2007-08-05T06:27:55Z
<p><span class="autocomment">Two Independent Sample T-Test Example</span></p>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>On the right panel, first click on '''EXAMPLE <del class="diffchange diffchange-inline">3</del>''' and next click on "Data" to retreive the demonstrated example. This is the example we'll be looking at.Note that the data are difference of B - A.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>On the right panel, first click on '''EXAMPLE <ins class="diffchange diffchange-inline">1</ins>''' and next click on "Data" to retreive the demonstrated example. This is the example we'll be looking at.Note that the data are difference of B - A.</div></td></tr>
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Annie
http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_TwoIndepT&diff=4614&oldid=prev
Annie: /* Two Independent Sample T-Test Example */
2007-08-05T06:24:24Z
<p><span class="autocomment">Two Independent Sample T-Test Example</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==Two Independent Sample T-Test Example==</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">We will demonstrate Two Independent T-Test with a SOCR built-in example. This example is based on a dataset from the statistical program "R." For more information of the R program, please see [http://cran.r-project.org/ CRAN Home Page]. The dataset used here is "shoes" under R's "MASS" library. In the dataset, ten boys are given to the wear of shoes of materials A and B for one foot. We'd like to find if one material is better than the other. </del></div></td><td colspan="2"> </td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">We will demonstrate Two Independent Wilcoxon Test with a SOCR built-in example.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">This example is based on the data taken from "Mathematical Statistics and Data Analysis" by John A. Rice, Second Edition, Ducbury Press, 1995. (Page 390) </ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here's the steps of the activity:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here's the steps of the activity:</div></td></tr>
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Annie