A University Surveyed Recent Graduates of the English Department for Their

Multiple Choice

A university surveyed recent graduates of the English department for their starting salaries. Four hundred graduates returned the survey. The average salary was $25,000. The population standard deviation was $2,500. What is the 95% confidence interval for the mean salary of all graduates from the English department?

A) [$22,500,$27,500]
B) [$24,755,$25,245]
C) [$24,988,$25,012]
D) [$24,600,$25,600]