Question: A poll of 100 US. congress people was taken to determine their opinions concerning a bill to lift the ban on stem cell research. Each congressperson was then classified according to political party affiliation and opinion on the policy. The results are summarized below. Since the vote is close, one would like to find out whether congress voted along party lines or not. Therefore, please test the null hypothesis that these two classifications are independent of one another, against the alternative hypothesis that they are not. Use a level of significance of 0.05

a. Construct a contingency table for this data. (You may use SPSS if you wish!) (3 points)

b. What are the expected values for each cell (show calcs or annotated SPSS output please)? (3 points)

c. Is there independence between political standing and opinion on this issue? Explain! (3 points)