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2.) In a survey of 2016 US adults, 1310 think the mainstream media is more interested in making money than telling the truth. a.) Find a 99% confidence interval for the population proportion. b.) You want to produce your own results with a 95% confidence and you want your estimate to be within 5% of the population proportion. If no preliminary estimate is available, find the minimum sample size needed. 3.) In a survey of 3539 US adults, 53% believed that the economy was improving. The survey's margin of error is +3%. a.) Translate the statement into a confidence interval. b.) Approximate the level of confidence (at what percent)