Chauncey Determined That 50 Percent of Students at His School

Multiple Choice

Chauncey determined that 50 percent of students at his school voted Republican in the last election,with a sampling error (also known as standard error) of 5 percent.What is the confidence interval for 95 percent confidence level?

A) 35 to 45 percent
B) 35 to 55 percent
C) 40 to 55 percent
D) 40 to 60 percent
E) 35 to 60 percent