In a study involving a random sample of residents of San Diego, California, participants were asked, “Do you think having the US Mexico border nearby has a positive impact, a negative impact, or no impact on your community? “Results, classified by city location, are shown in the table below (ICF Survey Project: “Why the Border Matters, “cfdn.org/).

Use a chi square test of independence to test a null hypothesis that response is independent of city location for the populations represented here. Use a significance level of 5%.

Transcribed Image Text:

OBSERVED FREQUENCIES Opinion No City Location Positive Negative Impact Totals South San Diego 158 20 26 204 Central San Diego 132 26 33191 43 212 417 8 102 607 42 North San Diego 27 Totals