Is party affiliation and opinion independent


The contingency table below shows the results of a random sample 200 state representatives that was conducted to see whether their opinions on a bill are related to their party affiliation. Is party affiliation and opinion independent? Use alpha =.01.

                    Opinion

Party            Approve            Disapprove      No Opinion                                         

Republican         42                    20                14                                 

Democrat          50                    10                18                     

Independent       16                    21               9

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Mathematics: Is party affiliation and opinion independent
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