Answer to Question #301267 in Statistics and Probability for Weng

Question

A Researcher surveyed 80 randomly selected Certified Public Accountants in each of the cities in Metro Manila area and asked them if they have performed work for free for 10 0r fewer clients in the last year. The results are shown in the table. At =0.10, is there enough evidence to reject the claim that the proportions of those who accept free work for 10 or fewer clients are the same in each city?