Using RapidMiner, please do the hands-on exercise on k-means clustering described in Chapter 6 of the Matthew North book.Run the model three times, first with three clusters, next with four clusters, and then with five clusters. For each of the three attempts, place screenshots of the following in the Word document: (a) a table that you obtain by selecting the "Description" button in the results window, and (b) the centroid table.

(1) Which of the three models would be most cost effective in identifying and providing help to the company's insurance customers who need it most? Is this model also most cost-effective of the three or not? Please explain why you selected this particular model, i.e., justify your answers to the above questions.

(2) Consider the model that you identified in the previous step. Which cluster within the selected model should Sonia begin with? Please explain why you selected this particular cluster, i.e., justify your answer.