A local county is considering a budget proposal that would allocate extra funding toward the renovation of city parks. A survey is conducted to measure public opinion concerning the proposal. A total of 150 individuals respond to the survey: 50 who live within the city limits and 100 from the surrounding suburbs. The frequency distribution is as follows:

a. Is there a significant difference in the distribution of opinions for city residents compared to those in the suburbs? Test at the .05 level of significance.
b. The relationship between home location and opinion can also be evaluated using the phi coefficient. If the phi-coefficient were computed for these data, what value would be obtained for phi?

Opinion Oppose Favor 35 15 50 City 100 Suburb 55 45 90 60