Question: This is also Exercise. For a survey based on 2000 adults, what is the approximate margin of error?
Exercise: A telephone survey of 2000 Canadians conducted March 20-30, 2001, found that "Overall, about half of Canadians in the poll say the right number of immigrants are coming into the country and that immigration has a positive effect on Canadian communities. Only 16 percent view it as a negative impact while one third said it had no impact at all" (The Ottawa Citizen, August 17, 2001, p. A6.).
What is the approximate margin of error for this survey?