In a poll of 553 voters in a certain city,64% said that they supported the NDP in an upcoming election.The margin of error in the poll was reported as 4 percentage points (with a 95% degree of confidence).Make a statement about the adequacy of the sample size for the given margin of error.
A)The sample size is too large to achieve the stated margin of error.
B)For the given sample size,the margin of error should be smaller than stated.
C)The sample size is too small to achieve the stated margin of error.
D)The reported margin of error is consistent with the sample size.
E)There is not enough information to determine whether the margin of error is consistent with the sample size.

Question

Quizplus · Accepted Answer

The reported margin of error is consistent with the sample size. A sample size of 553 is considered large enough to achieve the stated margin of error of 4 percentage points with a 95% degree of confidence. Therefore, the sample size is adequate for the poll.

In a Poll of 553 Voters in a Certain City,64