3. Create Let's find the following findings using proc summary in SAS: 1) Who are the five most valuable customers to the business in terms of volumes or sales amount? 2)

Who are the five most valuable itermID that were purchased most in terms of volumes or total sales amount? 4. Using the univariate and graph command in SAS, find the outliers of customers and item IDs on the total sales. Carefully explain what to do with the outliers.