Proportionate reduction - PowerPoint PPT Presentation

Considerations in Testing Vaccines in Developing Countries

Considerations in Testing Vaccines in Developing Countries. Zhi-yi Xu, MD, Wei Liu, MD International Vaccine Institute. Definition of Phases. Phase Study Population Principal Goal(s) 1 Healthy adults Safety;

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PS 225 Lecture 17

PS 225 Lecture 17. Comparing Two Variables. In-Class Analysis. Independence vs. Dependence. Independence: Variables are not related Dependence: Variables demonstrate correlation Independent Variable Dependent Variable . Chi-Squared Statistic. Hypothesis Test for Independence.

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Chapter 12

Chapter 12. Prediction/Regression Part 2: Nov. 19, 2013. Simple Regression Review. Regression allows us to predict y using x (predictor) We create a regression equation or line – based on 1 sample, then use to predict y scores for a 2 nd sample. Ŷ = .688 + .92(x)

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232 views • 12 slides

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