it Course Hero X t Homework Help - Q&A from X 6 C' cf.instructure.com STA2023 Exam 3 Review Spring 2022.docx (2) (a) In a research poll in New Jersey in which respondents were asked if they felt offended by public smoking, 48% said yes. How many people would need to be surveyed for a 90% condence interval to ensure the margin of error would be less than 3%? (This simply means to find the sample size.) (b) Find the sample size needed to estimate the percentage of robberies in South Carolina that result in arrests. Use a 0.06 margin of error, use a confidence level of 95% and assume that p (3) In a recent research poll in Frederick, Maryland, 57% of 3104 randomly selected cigarette smokers said they smoke in restaurants so the sample proportion is 1A1= 0.57 Find the best point estimate of the proportion of all male cigarette smokers in Frederick, Maryland who smoke in restaurants