3. Consider a fleet of N airplanes. Each airplane breaks down independently at rate μ, and is the...
(1) Consider a "two machine two repairman" problem, where each machine independently breaks down at rate μ (that is after an exponential waiting time with parameter μ) (a) If each repairman repairs a machine at rate λ, calculate the long term proportion of time when both machines are broken. [Hint: calculate the stationary probabilities.] You can also consider 4 marks] (b) Assume that repairman Abel works at rate X, and repairman Bernard works at rate Xb. When there is only...
Q3. Each time a machine is repaired it remains "up" for an exponentially distributed time with rate A. It then fails and "down", and its failure is either of two types. If it is a type 1 failure, then the time to repair the machine is exponential with rate μ!, if it is a type 2 failure, then the repair time is exponential with rate H2. Each failure is, independently of the time it took the machine to fail, a...
art 250 Choose the best answer of both hands at the same time is A. flow process chart simultaneous-motion (SIMO) chart 2 The best chart used to analyze the Body is called B. Operations charts D. None of the above 3. In a stopwatch time study, the average time it takes a given worker to perform a task a certain number of times is the: A. Observed time B. Normal time C. Standard time D. Performance rating time Labor Standards...