A university surveyed tecent graduates of the Englsh department for their starting salaries. Four hundred graduatos roturned the warvey. The average sitary wss $25,000. The population standard deviation as 52,500 . A 95% confidence interval is constructed. What does the confidence interval mear? Mutiple choice The pop.lotion mean is not in the intervit. The populaton tean is in the interel. There is a ble chance that the cosputed interval does not contain the populabent meat