Author Question: For a given poll, a professional polling firm states that it has 95 percent confidence that the ... (Read 55 times)

pragya sharda · **on:** Jul 9, 2018

For a given poll, a professional polling firm states that it has 95 percent confidence that the maximum margin of sampling error is plus or minus four percentage points. What is the firm trying to say by claiming 95 percent confidence?

A) There is a 95 percent chance that the poll is off by four points or more.
B) There is a 5 percent chance that the poll is off by four points or more.
C) There is a 95 percent chance that the poll is off by five points or more.
D) There is a 4 percent chance that the poll is off by five points or more.
E) There is a 5 percent chance that the poll is off by ninety-five points or more.

Question 2

One consequence of the distinctive conservatism of southern white voters is that:

A) the concept of a white vote has emerged.
B) the concept of a white vote is misleading.
C) the concepts of a southern white vote and a northern white vote are no longer different.
D) the white working-class problem has been eliminated.
E) support for the democrats has evolved.