When finding sample size, cutting the margin of error in half requires that the sample size be four times larger.

Name: When finding sample size, cutting the margin of error in half requires that the sample size be four times larger.
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Question

Quizplus · Accepted Answer

The sample size needed for a given margin of error is inversely proportional to the square of the margin of error. Therefore, to cut the margin of error in half, the sample size must be increased by a factor of four.

When Finding Sample Size, Cutting the Margin of Error in Half