SOCR EduMaterials AnalysisActivities NormalPower Power - Revision history

IvoDinov at 03:01, 31 January 2008

2008-01-31T03:01:00Z

2008-01-31T03:00:27Z

‎SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Background

2007-08-06T22:50:04Z

‎SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Background

2007-08-06T22:49:20Z

‎SOCR Nowmal Power Analysis Activity: Look for Power

2007-08-06T08:57:19Z

‎SOCR Nowmal Power Analysis Activity

2007-08-06T08:54:50Z

‎SOCR Nowmal Power Analysis Activity

2007-08-06T08:53:57Z

2007-08-06T08:42:02Z

2007-08-06T08:41:43Z

2007-08-06T08:41:27Z

@@ Line 11: / Line 11: @@
 Note that, H_A can be testing for the cases of '''mu_0 > mu_A''', and '''mu_0 < mu_A'''. The options are also provided by this tool.
-=== SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Example ===
+=== [http://socr.ucla.edu/htmls/SOCR_Analyses.html SOCR Normal Power Analysis] Activity: Look for Power with Known Sample Size, Example ===
 '''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. The box '''Get Power Using Sample Size''' must be selected. Note that all the fields are required, otherwise the power will not be computed.

← Older revision		Revision as of 03:00, 31 January 2008
Line 1:		Line 1:
−	=== SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Background ===	+	=== [http://socr.ucla.edu/htmls/SOCR_Analyses.html SOCR Normal Power Analysis] Activity: Look for Power with Known Sample Size, Background ===

	With two parent distributions, both of the same standard deviation ('''sigma'''), and we already know the sample size, we'd like to find the power of the test. The significance level needs to be provided by the user.		With two parent distributions, both of the same standard deviation ('''sigma'''), and we already know the sample size, we'd like to find the power of the test. The significance level needs to be provided by the user.

@@ Line 1: / Line 1: @@
 === SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Background ===
-With two parent distributions, both of the same standard deviation (sigma), and we already know the sample size, we'd like to find the power of the test. The significance level needs to be provided by the user.
+With two parent distributions, both of the same standard deviation ('''sigma'''), and we already know the sample size, we'd like to find the power of the test. The significance level needs to be provided by the user.
 The two hypotheses are written as:
-H_0: the true mean, mu, is equal to some constant, mu_0.
+'''H_0''': the true mean, '''mu''', is equal to some constant, '''mu_0'''.
-H_A: the true mean, mu, is not equal to mu_0. And we are testing for another possible mean, mu_A.
+'''H_A''': the true mean, mu, is not equal to mu_0. And we are testing for another possible mean, '''mu_A'''.
-Note that, H_A can be testing for the cases of mu_0 > mu_A, and mu_0 < mu_A. The options are also provided by this tool.
+Note that, H_A can be testing for the cases of '''mu_0 > mu_A''', and '''mu_0 < mu_A'''. The options are also provided by this tool.
 === SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Example ===

← Older revision		Revision as of 22:49, 6 August 2007
Line 1:		Line 1:
−	=== SOCR ~~Nowmal~~ Power Analysis Activity: Look for Power ===	+	=== SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Background ===
		+
		+	With two parent distributions, both of the same standard deviation (sigma), and we already know the sample size, we'd like to find the power of the test. The significance level needs to be provided by the user.
		+
		+	The two hypotheses are written as:
		+
		+	H_0: the true mean, mu, is equal to some constant, mu_0.
		+
		+	H_A: the true mean, mu, is not equal to mu_0. And we are testing for another possible mean, mu_A.
		+
		+	Note that, H_A can be testing for the cases of mu_0 > mu_A, and mu_0 < mu_A. The options are also provided by this tool.
		+
		+
		+	=== SOCR Normal Power Analysis Activity: Look for Power with Known Sample Size, Example ===

	'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. The box '''Get Power Using Sample Size''' must be selected. Note that all the fields are required, otherwise the power will not be computed.		'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. The box '''Get Power Using Sample Size''' must be selected. Note that all the fields are required, otherwise the power will not be computed.

← Older revision		Revision as of 08:57, 6 August 2007
Line 1:		Line 1:
−	=== SOCR Nowmal Power Analysis Activity ===	+	=== SOCR Nowmal Power Analysis Activity: Look for Power ===

	'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. The box '''Get Power Using Sample Size''' must be selected. Note that all the fields are required, otherwise the power will not be computed.		'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. The box '''Get Power Using Sample Size''' must be selected. Note that all the fields are required, otherwise the power will not be computed.

← Older revision		Revision as of 08:54, 6 August 2007
Line 1:		Line 1:
	=== SOCR Nowmal Power Analysis Activity ===		=== SOCR Nowmal Power Analysis Activity ===

−	'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. Note that all the fields are required, otherwise the power will not be computed.	+	'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. The box '''Get Power Using Sample Size''' must be selected. Note that all the fields are required, otherwise the power will not be computed.

← Older revision		Revision as of 08:53, 6 August 2007
Line 1:		Line 1:
		+	=== SOCR Nowmal Power Analysis Activity ===
		+
	'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. Note that all the fields are required, otherwise the power will not be computed.		'''1.''' Click on '''SELECT PARAMETERS''' to define parameter values. Note that all the fields are required, otherwise the power will not be computed.

← Older revision		Revision as of 08:42, 6 August 2007
Line 21:		Line 21:

	'''5.''' Click on '''COMPARE CURVES''' to view distrubution of the population and the mean.		'''5.''' Click on '''COMPARE CURVES''' to view distrubution of the population and the mean.
		+
		+	<hr>
		+
		+	{{translate\|pageName=http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_EduMaterials_AnalysisActivities_NormalPowerPower}}

← Older revision		Revision as of 08:41, 6 August 2007
Line 21:		Line 21:

	'''5.''' Click on '''COMPARE CURVES''' to view distrubution of the population and the mean.		'''5.''' Click on '''COMPARE CURVES''' to view distrubution of the population and the mean.
−
−	~~<center>[[Image:SOCR_AnalysisActivities_NormalPowerPower_Chu_051707_Fig5.gif\|700px]]</center>~~
−
−
−	~~<center>[[Image:SOCR_AnalysisActivities_NormalPowerPower_Chu_051707_Fig6.gif\|700px]]</center>~~

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 <center>[[Image:SOCR_AnalysisActivities_NormalPowerPower_Chu_051707_Fig1.gif|700px]]</center>
 <center>[[Image:SOCR_AnalysisActivities_NormalPowerPower_Chu_051707_Fig2.gif|700px]]</center>
 <center>[[Image:SOCR_AnalysisActivities_NormalPowerPower_Chu_051707_Fig3.gif|700px]]</center>
 <center>[[Image:SOCR_AnalysisActivities_NormalPowerPower_Chu_051707_Fig4.gif|700px]]</center>
 <center>[[Image:SOCR_AnalysisActivities_NormalPowerPower_Chu_051707_Fig5.gif|700px]]</center>