Wires manufactured for use in a certain computer system are specified to have resistances between 0.12 ohm and 0.14 ohm, the actual measured resistances of the wires produced by company A have a normal probability distribution with a mean of 0.13 ohm and a standard deviation of 0.005 ohm.
(i) What is the probability that a randomly selected wire from company A's production will meet the specifications?
(ii) If 4 such wires are used in the system and are selected from company A, what is the probability that all 4 will meet specifications?
(i) $$P(0.12≤X≤0.14)$$ $$P(\frac{0.12-0.13}{0.005}≤Z≤\frac{0.14-0.13}{0.005})$$ $$P(-2≤Z≤2)$$ $$P(Z≤2) - P(Z≤-2)$$ $$0.9772 - (1-0.9972)$$ $$0.9544$$
(ii) I'm stuck on this part, do you simply put $0.9544^4 = 0.8297?$