question archive Can you please explain how to answer this question? A researcher wants to calculate the prevalence of Alzheimer's among members of a specific community who are 65 years of age and older
Can you please explain how to answer this question? A researcher wants to calculate the prevalence of Alzheimer's among members of a specific community who are 65 years of age and older
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Can you please explain how to answer this question?
A researcher wants to calculate the prevalence of Alzheimer's among members of a specific community who are 65 years of age and older. The researcher needs to know how many individuals who are 65 years of age or older need to be recruited for the study to ensure the estimated prevalence will be within 1.0% of the true proportion. Calculate the sample size needed by the researcher if a national study has shown 11.11% of individuals 65 years of age have Alzheimer's and the researcher wants to be 95% confident of the estimate.
