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Question
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, $68,163]
B. [$46,592, $47,040]
C. [$46,157, $47,475]
D. [$46,783, $46,849]
E. [$45,981, $47,650]
Answer
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