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Examples
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The POWER Procedure
Overview
Getting Started
Computing Power for a One-Sample t Test
Determining Required Sample Size for a Two-Sample t Test
Syntax
PROC POWER Statement
LOGISTIC Statement
MULTREG Statement
ONECORR Statement
ONESAMPLEFREQ Statement
ONESAMPLEMEANS Statement
ONEWAYANOVA Statement
PAIREDFREQ Statement
PAIREDMEANS Statement
PLOT Statement
TWOSAMPLEFREQ Statement
TWOSAMPLEMEANS Statement
TWOSAMPLESURVIVAL Statement
TWOSAMPLEWILCOXON Statement
Details
Overview of Power Concepts
Summary of Analyses
Specifying Value Lists in Analysis Statements
Sample Size Adjustment Options
Error and Information Output
Displayed Output
ODS Table Names
Computational Resources
Computational Methods and Formulas
ODS Graphics
ODS Styles Suitable for Use with PROC POWER
Examples
One-Way ANOVA
The Sawtooth Power Function in Proportion Analyses
Simple AB/BA Crossover Designs
Noninferiority Test with Lognormal Data
Multiple Regression and Correlation
Comparing Two Survival Curves
Confidence Interval Precision
Customizing Plots
Binary Logistic Regression with Independent Predictors
Wilcoxon-Mann-Whitney Test
References
Examples: POWER Procedure
71.1 One-Way ANOVA
71.2 The Sawtooth Power Function in Proportion Analyses
71.3 Simple AB/BA Crossover Designs
71.4 Noninferiority Test with Lognormal Data
71.5 Multiple Regression and Correlation
71.6 Comparing Two Survival Curves
71.7 Confidence Interval Precision
71.8 Customizing Plots
71.9 Binary Logistic Regression with Independent Predictors
71.10 Wilcoxon-Mann-Whitney Test
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