Company I manufactures demolition fuses that burn an average of 50 minutes with a standard deviation of 10 minutes, while company II advertises fuses that burn an average of 55 minutes with a standard deviation of 5 minutes. Which company's fuse is more likely to last at least 1 hour? Assume normal distributions of fuse times.
(A)Company I's, because of its greater standard deviation (B)Company II's, because of its greater mean (C)For both companies, the probability that a fuse will last at least 1 hour is 0.159 (D)For both companies, the probability that a fuse will last at least 1 hour is 0.841
C