I need help with these questions for my homework

1. What was the poll's margin of error?
2. Was the margin of error calculated at the 95% confidence level?
3. What does it mean that the margin of error was calculated at the 95% confidence level

Results for this Gallup poll are based on telephone interviews conducted April 2-11, soul, with a random sample of 1,o15 adults, aged 13 and older. living in all go [1.3. states and the District of Columbia. For results based on the total sample of national adults, the margin of sampling error is 5:4 percentage points at the 95% condence level. For results based on the sample of -- 320 - - retirees, the margin of sampling error is i? percentage points. For results based on the sample of 695 -- non-retirees, the margin of sampling error is :|:5 percentage points. All reported margins of sampling error include computed design effects for weighting Each sample of national adults includes a minimum quota of e056 cellphone respondents and 3o96 landline respondents, with additional minimum quotas bytime zone within region. landline and eellular telephone numbers are selected using random-digitdial methods