Mathematics, 21.10.2019 21:00 alyssamaize

Acertain component is critical to the operation of an electrical system and must be replaced immediately upon failure. if the mean lifetime of this type of component is 100 hours and its standard deviation is 30 hours, how many of the components must be in stock so that the probability that the system is in continual operation for the next 2000 hours is at least .95?

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Acertain component is critical to the operation of an electrical system and must be replaced immedia...