In a survey of 2230 U.S. Adults., 1272 think that air travel is much more reliable than taking cruises. A.) Construct a 95% confidence interval for the population proportion of U.S. adults who think that air travel is much more reliable than taking cruises. B.) Change the confidence level to 90% and repeat A. What happened to the interval after decreasing the level to 90%. Using the appropriate formula (in other words show all your work) find the requested information for you assigned problem. Make sure to explain your rationale as to why you use A z-interval or T-interval