What is the probability that the network will stay up

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Reference no: EM131878136

Your office network has been measured to stay working an average of 2,200 hours with a standard deviation of 285 hours.

What is the probability that the network will stay up for 2,800 hours before it fails? (Keep two decimal points in your percentage answer.)

What i got is that 2800-2200/285 = 2.105

Looking at the Z table we get 0.9821. WE then do 1 - 09.9821 to get 0.0179

Reference no: EM131878136

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