A manufacturing process produces bags of cookies. The
distribution of content weights of these bags is Normal with
mean 15.0 and standard deviation 1.0 oz. We will randomly
select 100 bags of cookies and weigh the contents of each
bag selected. The probability that the sample mean will be at
least 14.9 ounces is
O 0.8413
O 0.1587
O 0.4602
O 0.5398
