The article “Nine Out of Ten Drivers Admit in Survey to Having Done Something Dangerous” (Knight Ridder Newspapers, July 8, 2005) reported on a survey of 1,100 drivers. Of those surveyed, 990 admitted to careless or aggressive driving during the previous 6 months. Assume that the sample is representative of the population of drivers. Answer the four key questions (QSTN) to confirm that the suggested method in this situation is a confidence interval for a population proportion.