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]