Solve the Problem $\sigma$ = 028 Ounces, Find the Margin of Error in Estimating µ

Multiple Choice

Solve the problem.
-A sample of 55 eggs yields a mean weight of 1.76 ounces. Assuming that $\sigma$ = 0.28 ounces, find the margin of error in estimating µ at the 95% level of confidence.

A) 0.06 oz
B) 0.01 oz
C) 0.47 oz
D) 0.07 oz