An SRS of 18 recent birth records at the local hospital was selected. In the sample, the average birth weight was 119.6 ounces a
nd the standard deviation was 6.5 ounces. Assume that the population of birth weights of all babies born in this hospital follow a Normal distribution, with mean μ. The standard error of the mean is
A. 6.50.
B. 1.53.
C. 0.36.
D. 0.02.
