The American Journal of Orthopsychiatry published an article…
The American Journal of Orthopsychiatry published an article on the prevalence of homelessness in the United States. A sample of 500 adults was asked to respond to the question: “Was there ever a time in your life when you did not have a place to live”? A total of 30 adults in the sample answered yes to this question. Is the sample size in this problem large enough for large-sample confidence interval procedures to be valid?