In a Random Sample of 651 Computer Scientists Who Subscribed $[ \$ 25,469 \quad \$ 68,163 ]$

Multiple Choice

In a random sample of 651 computer scientists who subscribed to a web-based daily news update,it was found that the average salary was $46,816 with a population standard deviation of $12,557.Calculate a 91 percent confidence interval for the mean salary of computer scientists.

A) $[ \$ 25,469 \quad \$ 68,163 ]$
B) $[ \$ 46,592 \quad \$ 47,040 ]$
C) $[ \$ 46,157 \quad \$ 47,475 ]$
D) $[ \$ 46,783 \quad \$ 46,849 ]$
E) $[ \$ 45,981$$\quad$$\$ 47,650 ]$