The University of Wisconsin employs 200 teaching assistants (TAs). If one-third of the TAs sign a ...

  

7. MBB Problem 9.16

The University of Wisconsin employs 200 teaching assistants (TAs). If one-third of the TAs sign a petition calling for a collective bargaining election, an election will be held. A survey of 50 TAs indicates that 40% will sign the petition. What is the probability that a sample such as this could have occurred if one-third or fewer of the TAs in the population will sign such a petition?