If the Margin of Error in an Interval Estimate of $\bar { x } \pm 2.3$

Multiple Choice

If the margin of error in an interval estimate of ? is 4.6, the interval estimate equals _____.

A) $\bar { x } \pm 2.3$
B) $\bar { x } \pm 4.6$
C) $\bar { x } \pm 4.508$
D) $\bar { x } \pm 6.9$