4. The output voltage of a power supply is normally distributed with mean 5 V and standard deviation 0.027 V. If the lower and upper specifications for voltage are 4.95 V and 5.05 V, respectively, what is the probability that a power supply selected at random will conform to the specification on voltage? 5. A lot of size N = 44 contains three nonconforming units. What is the probability that a sample of five units selected at random contains exactly one nonconforming unit? What is the probability that it contains one or more nonconformances