NEWS 21.12 Gun control. A March 2018 Gallup survey asked a sample of 1041 adults if they wanted stricter laws covering the sale of firearms. A total of 697 of the survey respondents said “yes." Although the samples in national polls are not SRSS, they are similar enough that our method gives approximately correct confidence intervals. a. Say in words what the population proportion p is for this poll. b. Find a 95% confidence interval for p. c. Gallup announced a margin of error of plus or minus 4 percentage points for this poll result. How well does your work in part (b) agree with this margin of error?

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