Question
To track epidemics, the Center for Disease Control and Prevention requires physicians to report all cases of important transmissible diseases. In 2014, a total of
To track epidemics, the Center for Disease Control and Prevention requires
physicians to report all cases of important transmissible diseases. In 2014,
a total of 350,062 cases of gonorrhea were officially reported, 53% of which
were individuals in their 20s. Assume this 53% stays the same every year.
Researchers plan to take a simple random sample of 400 diagnosed cases of
gonorrhea to study the risk factors associated with the disease. Call $\hat{p}$
the proportion of cases in the sample corresponding to individuals in their 20s.
What is the mean of the sampling distribution of $\hat{p}$ in random samples of size 400?
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