Suppose disease prevalence and age breakdown in a sample is given by the table below Age bracket Sample Proportion in Age Bracket Sample Disease Prevalence in Age Bracket 65+ .4 .15 <65 .6 .09 What is the overall disease prevalence in the sample? Suppose in the population of interest the age breakdown is 30% 65+ and 70% <65. What is the estimated disease prevalence in the population of interest using this sample?
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Step 1: The overall disease prevalence in the sample is the weighted average of the disease prevalence in each age bracket, weighted by the proportion of the sample in each age bracket. Show more…
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