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Summary RBMS part 2, an overview of all lecture slides
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This document contains all lecture slides of the RBMS course.
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By: edaselinkaya • 1 year ago
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Summary research in biomedical sciences part 2Lecture 5 – Statistical techniques 1 Z and Chi-square tests
Understand when, why and how to conduct
• a one-sample z-test
• a chi-square-test of goodness of fit
• a two-sample z-test
• relative risk and odds ratio
• a chi-square-test for two-way tables
A statistical test
• whether a hypothesis about the population
• may or may not be supported by the results of the sample
Test Statistic = (point estimate –expected value)/SE
Parametric tests
• Z and Chi-square tests
• T-tests
• Correlation tests
Non-parametric tests
,
,
, Example:
• Alternative to one-sample z-test: chi-square goodness of fit test
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