This problem does not require the use of data mining software and focuses on knowledge of concepts and basic calculations. hierarchical clustering based on Euclidean distance to measure dissimilarity between observations and complete linkage as the agglomeration method. (a) Based on the following dendrogram, what is the most appropriate number of clusters to organize these utility companies? units as displayed in the dendrogram. Calculate the following distances. (Round your answer to three decimal places.) Distance from Observation 10 and Observation 4: Distance from Observation 10 and Observation 20: Distance from Observation 13 and Observation 4: Distance from Observation 13 and Observation 20: cluster is based on the distance between