SOLUTION: A local county has a very active adult education venue. A random sample of the population showed that 189 out of 400 persons 16 years old or older participated in some type of form

Question 1161901: A local county has a very active adult education venue. A random sample of the population showed that 189 out of 400 persons 16 years old or older participated in some type of formal adult education activities, such as basic skills training, apprenticeships, personal interest courses, and part-time college or university degree programs. Estimate the true proportion of adults participating in some kind of formal education program with 98% confidence. Assume the variable is normally distributed.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
p hat is 189/400=0.4725
98% CI half-interval is z(0.99)*sqrt(p*(1-p)/n)=2.328*sqrt(.4725*.5275/400)=0.0581
add to and subtract form interval (0.4144, 0.5306)
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