In: Statistics and Probability
5. In a random sample of 200 adult Americans, 8 had some form of
color blindness.
a. Construct and interpret a 95% confidence interval using the
Wilson-adjusted method.
b. Using the information above as a pilot study, how many adult
Americans would need to be sampled in order
to estimate the population proportion with a standard error of no
more than 0.005?
c. If no prior estimate of the prevalence of color blindness was
available, how many adult Americans would
need to be sampled in order to estimate the population proportion
with a standard error of no more than
0.005?