The following confidence interval is obtained for a population proportion, $p : ( 0.734,0.778 )$ Use these confidence interval limits to find the margin of error, E.
A) 0.020
B) 0.044
C) 0.022
D) 0.023

Question

Quizplus · Accepted Answer

The margin of error is half the width of the confidence interval. The width of the confidence interval is 0.778 - 0.734 = 0.044. Therefore, the margin of error is 0.044 / 2 = 0.022.

The Following Confidence Interval Is Obtained for a Population Proportion p:(0.734,0.778)p : ( 0.734,0.778 )p:(0.734,0.778)

The Following Confidence Interval Is Obtained for a Population Proportion $p : ( 0.734,0.778 )$