Refer to the Presidential elections cluster analysis. a. The observations were the same for New Jersey and Pennsylvania as llinois, and the same for North Carolina as Virginia. Conduct a cluster...

Refer to the Presidential elections cluster analysis.

a. The observations were the same for New Jersey and Pennsylvania as llinois, and the same for North Carolina as Virginia. Conduct a cluster analysis, showing the dendrogram, using these three states together with the 14 states. Interpret.

b. Repeat the cluster analysis of without the Presidential elections of 1980 and 1984, in which nearly all states favored the Republican candidate (Ronald Reagan). Show the dendrogram and compare results to the analysis that used those elections.