Question

How well do Airline companies serve their customers?. A study showed the following customer ratings: 3% excellent, 28% good, 45% fair, and 24% poor ( Business week, September 11, 2019). IN a follow up study of service by telephone companies, assume that a sample of 400 adults found the following customer ratings: 24 excellent, 124 good, 172 fair, and 80 poor. Is the distribution of the customer ratings for telephone companies different from the distribution of customer ratings for the Airline companies?. Set up the hypotheses to be tested and test with α=.01. what is your conclusion?.

Answer 1