Answer the question.
-In a recent published poll of 200 students at a midwestern university, 150, or 75%, said they would try to
Purchase used textbooks before buying new textbooks. The report stated that somewhere between 70% and 80%
Of the students at the university would first try to purchase used books. What is the margin of error?
A)10%
B)25%
C)75%
D)5%

Question

Quizplus · Accepted Answer

The margin of error is calculated as the range divided by 2. The range is 80% - 70% = 10%, so the margin of error is 10% / 2 = 5%.

Answer the Question. -In a Recent Published Poll of 200 Students at a Students