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 standard deviation of $12,557.Calculate a 91% confidence interval for the mean salary of computer scientists.
A)[$25,469 $68,163]
B)[$46,592 $47,040]
C)[$46,157 $47,475]
D)[$46,783 $46,849]
E)[$45,979 $47,653]

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The Answer of 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 standard deviation of $12,557.Calculate a 91% confidence interval for the mean salary of computer scientists.
A)[$25,469 $68,163]
B)[$46,592 $47,040]
C)[$46,157 $47,475]
D)[$46,783 $46,849]
E)[$45,979 $47,653]

In a Random Sample of 651 Computer Scientists Who Subscribed