Question: The weights of cans of soup produced by a company are normally distributed with a mean of 16 ounces and a standard deviation of 0.4 ounces. What is the probability that a can of soup selected randomly from the entire production will weigh at most 15.5 ounces?

(a) Referring to problem 1_3.8, determine the minimum weight of the heaviest 5% of all cans of soup produced.

(b) Referring to problem 1_3.8, if 40,000 of the cans of soup of the entire production weigh at least 16.6 ounces, how many cans of soup have been produced?