A survey of an urban university (population of 25,450) showed that 870 of 1100 students sampled attended a home football game during the season. What inferences can be made about student attendance at football games?
(a) What is the estimated proportion for the population?
(b) Using the 95% level of confidence, what is the confidence interval?
(c) Using the 99% level of confidence, what is the confidence interval?