A poll in 2017 reported that 686 out of 1019 adults in a certain country believe that marijuana should be legalized. When this poll about the same subject was first conducted in 1969, only 12% of the adults of the country supported legalization. Assume the conditions for using the CLT are met. Complete parts (a) through (d) below. a. Find and interpret a 99% confidence interval for the proportion of adults in the country in 2017 that believe marijuana should be legalized. The 99% confidence interval for the proportion of adults in the country in 2017 that believe marijuana should be legalized is(,) (Round to three decimal places as needed.)