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A student wants to know the average income of all the professors in the University. If there are 3000 professors and 500 are randomly asked there salary, the ave.= 52,000 with an SDof 11000. The student can then say any professor he sees makes 52000 dollars a year plus or minus what?
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    Carlos Rodriguez <carlos@math.albany.edu>
    This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
    Last modified: Wed May 13 12:29:11 EDT 1998