Which one of the following statements is true about sample size and margin of error?
A) Increasing the sample size of a survey decreases the margin of error.
B) Increasing the sample size of a survey increases the margin of error.
C) Increasing the sample size of a survey does not change the margin of error.
D) Increasing the sample size of a survey only changes the margin of error if there is an error (a mistake) in the way the survey is conducted.

Question

Quizplus · Accepted Answer

Increasing the sample size of a survey decreases the margin of error because a larger sample provides more information and reduces uncertainty in the estimate.

Which One of the Following Statements Is True About Sample