(a) A poll of 2,237 likely voters was conducted on the president's performance. Approximately what margin of error would the approval rating estimate have if the confidence level is 95%? (Round your answer to 4 decimal places.) Margin of error . ... (b) The poll showed that 47 percent approved the president's performance. Construct a 90 percent confidence interval for the true proportion. (Round your answers to 4 decimal places.) The 90% confidence interval is from to (c) Would you agree that the percentage of all voters opposed is likely to be 50 percent? O No, the confidence interval does not contain .50. O Yes, the confidence interval contains .50