Perform Hierarchical Clustering using $$Customer ID$$ as $[$ Label $]$ and the fields $$Age$,$Kids Under $12,$ and $$# Rentals$$ as $[$ Y$,$ Columns $].$

Set the number of clusters based on the highest value of Cubic Clustering Criterion $($CCC$)$ and generate its Cluster Summary. Then fill in the blanks of each of the following questions with an integer:

What is the number of clusters that yields the highest value of CCC$?$

Which cluster has the most members?

Which cluster has the least number of members?

Which cluster has the oldest members based on average age?

Which cluster has the highest average number of rentals?