Question-1: Make a Pareto Chart in MS Excel for the hotel complaints data given below, how many complaints should be addressed to achieve 80% improvement in the system. (5 Marks): 6 6 Room Interiors 55 Room Cleaning 3 Air Conditioning 2 Concierge 25 Delay in Room Service 90 Delay in Registration 15 Staff Attitude Dr. Mariam Farooq, 2 Mini Bar 40 Food Quality