During December 12-15, 2019 SSRS conducted a poll on behalf of CNN of Americans' attitudes toward major political topics of the day.The first question of the poll was:

Based on what you have read or heard, do you believe that President Trump should be impeached and removed from office, or don't you feel that way?

The poll had a total sample size of 1005 respondents with 45% stating they believed the President should be impeached and removed from office.47% selected the "don't you feel that way" response, indicating a lack of support for impeachment and removal.

a.What was the 95% confidence interval on the proportion of all Americans who support impeachment and removal of the President?(2 pts.)

b.Based on this information, can we say we believe there is a statistically significant difference between the proportion of Americans supporting impeachment and removal of the President at the time of this poll and the proportion in opposition to such? (4 pts.)