Question: An article in Microelectronics Reliability presented an example of electronic prognosis. The objective was to detect faults to decrease the system downtime and the number

An article in Microelectronics Reliability presented an example of electronic prognosis. The objective was to detect faults to decrease the system downtime and the number of unplanned repairs in high-reliability systems. Previous measurements of the power supply indicated that the signal is normally distributed with a mean of 1.5 V and a standard deviation of 0.02 V.
(a) Suppose that lower and upper limits of the predetermined specifications are 1.45 V and 1.55 V, respectively. What is the probability that a signal is within these specifications?
(b) What is the signal value that is exceeded with 95% probability?
(c) What is the probability that a signal value exceeds the mean by two or more standard deviations?

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