An article in Industrial Engineering (August 1990) discussed the importance of modeling machine downtime correctly in simulation
Question:
a. Find E(x-bar) and the variance of x-bar.
b. What probability distribution provides the best model of the sampling distribution of x-bar? Why?
c. Calculate the probability that the mean repair time x-bar is no longer than 30 minutes.
Distribution
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a If x is an exponential random variable then Ex 60 The standard d...View the full answer
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