What is the answer

d random sample. If the agency wants to be 90% sure that its estimate of the retire- ment percentage is within 2%, how large a sample should it take? anlistener 12.2 If 33% of the members of the Sweetheart Union sign petitions to decertify the union, the National Labor Relations Board (NLRB) will call an election to deter- mine whether Sweetheart will remain the exclusive bargaining agent. The union leadership takes a random sample survey of 40 and finds that 8 persons will sign the petition. What can you tell the union