EXAMPLE: The operations manager at a large newspaper wants to estimate the proportion of newspapers printed that have a nonconforming attribute. Nonconforming attributes consist of excessive rub-off, improper page setup, missing pages, or duplicate pages. The manager selects a random sample of 200 newspapers, which 35 newspaper contain some type of nonconformance. Construct and interpret a 90% confidence interval for the proportion of newspapers printed during the day that have a nonconforming attribute. ?