A manufacturing procedure produces bags of cookies. The distribution of content weights of these bags is Normal with mean 16.0 oz and standard deviation 0.8 oz. We will randomly select n bags of cookies and weigh the contents of each bag selected.
How many bags should be selected so that the standard deviation of the sample mean is 0.1 ounces?
A. 8 bags
B. 10 bags
C. 64 bags
D. 100 bags