a) A researcher has asked members of various occupations if they favor or oppose increasing welfare benefits at the taxpayer's expense. Treating occupation as a nominal-level independent variable, use...

1. a) A researcher has asked members of various occupations if they favor or oppose increasing welfare benefits at the taxpayer's expense.  Treating occupation as a nominal-level independent variable, use the following data to test the null hypothesis that occupation is not related to attitudes toward increased welfare benefits.  Use α = .05.

                         Occupational Level           Favors        Opposes

                               Professional                    46                  97

                               Clerical                           81                143

                               Skilled                             93                  88

                               Semiskilled                   241                136

                               Unskilled                       131                 38

                                   Total                          592                502

B) Compute and interpret an appropriate measure of association.

C) Which occupational group is most likely to favor increased welfare payments?  What percentage of this group favors payments? Which occupational group is most likely to oppose increased welfare payments? What percentage of this group opposes payments?