Suppose you are planning to use single sourcing and have narrowed down the choices to four suppliers A, B, C, and D. Your criteria for selection are price (min), company size in market capitalization in millions of dollars (max), and quality in a scale of 1-100 (max). The relevant data is given in the following:
(a) Scale the data using the ideal value method.
(b) Use the L∞ metric method to rank the four suppliers.