Please express all numerical answers as decimals to 4 decimal places (except for part 6). - Living wills are legal documents that allow people to state their wishes for end-of-life medical care in case they are unable to communicate those wishes. According to a June 2020 GALLUP poll of 1028 U.S. adults ages 18 and older, 463 have Living Wills.

a. What is the point estimate for the true proportion of all U.S adults ages 18 and older having a living will?

b. Use your calculator to determine the 95% Confidence Interval for the true proportion of all U.S. adults ages 18 and older having a living will?

c. Explain the meaning of the 95% confidence level in general (be careful here).

d. What is the margin of error for the interval you calculated in #2.

e. Use the Plus 4 Method to calculate a new 95% Confidence Interval .

f. How large a sample would be needed for the margin of error to be 2%?

g. If only 500 adults had been surveyed, what would the margin of error have been?