A candy manufacturer produces bags of jelly beans. The weight of a bag of jelly beans is normally distributed with a mean of 12 ounces and a standard deviation of 0.4 ounces.
If a random sample of 4 bags of jelly beans is selected what is the probability that the sample average will be greater than 11.6?
A. 84.13%
B. 95%
C. 99.7%
D. 97.73%
E. 15.87%