Gun Control. The Quinnipiac University Poll conducts nationwide surveys as a public service and for research. This problem is based on the results of one such poll that asked independent random samples of American adults in urban, suburban, and rural regions,

“Do you support or oppose requiring background checks for all gun buyers?” Here are the results. Response Region Urban Suburban Rural Total Support 335 348 318 1001 Oppose 35 23 50 108 Total 370 371 368 1109 At the 1% significance level, do the data provide sufficient evidence to conclude that a difference exists in the proportions of supporters among the three regions?