A Population Mean Is to Be Estimated from the Sample

Multiple Choice

A population mean is to be estimated from the sample described. Round your answer to one decimal place if necessary. Assume that all confidence intervals use a 95% confidence level.
-Sample size = 3025, sample mean = 244, sample standard deviation = 80 What is the margin of error?

A) 2.9
B) 0.1
C) 1.5
D) 8.9