Eighty Randomly Selected Students Took the Calculus Final

Multiple Choice

Eighty randomly selected students took the calculus final.If the sample mean was 76 and the standard deviation was 8.1,construct a 99% confidence interval for the mean score of all students.

A) (71.92,80.08)
B) (71.94,80.06)
C) (73.49,78.51)
D) (73.67,78.33)
E) (73.49,80.06)