00334cam a2200169   450000500170000024500550001702000050007210000380007704400050011525000050012004100080012530000050013350000050013883000050014326000090014808200070015720260711133856.0  aStatistical Techniques in Business and Economicsb  a  aMason, Robert D. Lind, Douglas A.  a  a  aspa  a  a  v  abc  ab