On a particular proposal of national importance, Democrats and Republicans cast their votes as shown in Table XXXXXXXXXXAt significance levels of (a) 0.01 and (b) 0.05, test the hypothesis that there...

On a particular proposal of national importance, Democrats and Republicans cast their votes as shown in Table 12.25. At significance levels of (a) 0.01 and (b) 0.05, test the hypothesis that there is no difference between the two parties insofar as this proposal is concerned.