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Three possible states - operating (1), degraded (2) and failed (3). When operating, it fails with a failure rate of =1/day and degrades with a failure rate of =1/day. When degraded, its failure rate increases to =2/day . Degraded state is detected with probability 0.9 (failed state with probability 1) and repair occurs in both degraded and failed states. Repair starts immediately upon detection of the failed or degraded state and restores the system to the operating state, with a MTTR of 2 hours from the degraded state and with a MTTR of 6 hours from the failed state. The system is available in the operating and the degraded states. Set up the differential equations describing the evolution of the system states in time
Discuss the level of measurement, assumptions that can be made, statistics that can be calculated from these data, and the general quality of the data
The portfolio assets are inverted in the Dow Jones fund
A manufacturer of electronics kits has found
A product is made up of two subsystems in parallel. Subsystem one consists of ten elements in series with a failure rate if 1/100. The second subsystem consists of 5 elements in series with a failure rate of 1/200. What is the overall reliabili..
Determine the number of stores that must be sampled in order to estimate the true proportion to within 0.05 with 95% confidence using the large-sample method.
Carry out a validation study, an I/O psychologist is developing a regression equation from data collected from those hired two years ago.
1.consider the following scenario for object recognition with two types of objects a and b where the ultimate goal is
In a regression analysis, a nurse researcher found a correlation of between pain relief scores and satisfaction with nursing care.
A researcher hypothesizes that people who listen to music via ear buds have greater hearing loss than those in the general population. On a standard hearing test, the mean (μ) is 24.75. Higher values indicate better hearing
q1. in a pure exchange economy with two goods g and h two traders amos and elise have cobb-douglas utility functions.
Find the indicated probabilities using Poisson distribution. Then determine if the events are unusual. A newspaper finds that the mean of typo error is five. Find the probability that a) exactly for errors found on a page, b)at most for errors ..
Uncle Henry has been having trouble keeping his weight constant. In fact, at the end of each week, he notices that his weight has changed by a random amount, uniformly distributed between ?0.5 and 0.5 pounds.
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