propCI : Confidence Intervals Around a Proportion« Back to Modules List
TitleConfidence Intervals Around a Proportion
AuthorEric A Cohen
File Size485.1 KB
DescriptionThis module focuses on understanding and calculating confidence intervals around a sample proportion. This includes understanding the concept of a confidence interval; writing R code to calculate Wald (normal approximation) confidence intervals; and writing code to test coverage of the true population proportion by confidence intervals. Next it introduces using the prop.test function to calculate CIs around a mean; has the user write code to compare the results and coverage proportion of their CI code with the results of prop.test; and briefly mentions the difference between Wald and Wilson CIs to explain the different results, and the more accurate coverage proportion of Wilson CIs.
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