If the margin of error is 3% and the sample mean for a particular variable is 80%, the confidence interval becomes:
A) 77%-80%
B) 80%-83%
C) 80%
D) 77%-83%

Name: If the margin of error is 3% and the sample mean for a particular variable is 80%, the confidence interval becomes: A) 77%-80% B) 80%-83% C) 80% D) 77%-83%
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Question

Quizplus · Accepted Answer

The confidence interval is calculated by adding and subtracting the margin of error from the sample mean, resulting in 80% ± 3%, which is 77% to 83%.

If the Margin of Error Is 3% and the Sample