Question: The system XYZ can be divided into subsystems and be represented by the block diagram below. A C. Normal, = 1600 hours, o =

The system XYZ can be divided into subsystems and be represented by

The system XYZ can be divided into subsystems and be represented by the block diagram below. A C. Normal, = 1600 hours, o = 100 hours. D. Lognormal, = 24, o = 12. E. Weibull, B=0.8, n = 10 000 hours. D B E The failures of each subsystem are distributed according to the following statistical distributions: A. Exponential = 12.0 failures per million hours. B. Weibull, B = 2.0, n = 20 000 hours. Calculate the system reliability at 1200 hours. Calculate the system reliability at 1600 hours. For the Blocks A, B and E determine which portion of the bathtub curve best describes each subsystem? Explain why.

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