Two chips are being considered for use in a certain system. The lifetime of chip 1 is
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Question:
Two chips are
being considered for use in a certain system.
The lifetime of chip 1
is
modelled
by a Gaussian random variable with mean 20,000 hours and standard
deviation
5000 hours. (The probability of negative lifetime is negligible.) The
lifetime of chip 2 is
also a
Gaussian random variable but with mean 22,000 hours
and standard deviation
000 hours.
Which chip is preferred if the target lifetime of
the system is 20,000 hours?
24,000 hours?
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