When did the german parliament burn (month & year)? a: september 1931 b: february 1933 c: october 1935 d: march 1936

Arecent poll of 500 residents in a large town found that only 36% were in favor of a proposed referendum to build a new high school. find the margin of error for this poll if we want 95% confidence in our estimate of the percentage of residents in favor of this proposed referendum.