A mechanical assembly used in an automobile engine contains four major components. The weights of the components

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A mechanical assembly used in an automobile engine contains four major components. The weights of the components are independent and normally distributed with the following means and standard deviations (in ounces):

(a) What is the probability that the weight of an assembly exceeds 29.5 ounces?
(b) What is the probability that the mean weight of eight independent assemblies exceeds 29 ounces?

Standard Component Mean Deviation 0.4 0.5 0.2 0.5 Left case Right case Bearing assembly Bolt assembly 5.5 10
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Applied Statistics And Probability For Engineers

ISBN: 9781118539712

6th Edition

Authors: Douglas C. Montgomery, George C. Runger

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