Answer:
The most appropriate tool to use in this case would be the Pareto’s chart
Step-by-step explanation:
The most appropriate tool to use in this case would be the Pareto’s chart which is a graphic that helps organizing the information from the most important to the left, and the following importance problems to the right, prioritizing information; all of these parameters (in this case, customer complaints) in order to analyze a second variable, in this particular case customer satisfaction.