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A closed-loop system with unity feedback has a transfer function
(a) Determine the loop transfer function Gc(s)G(s). (b) Plot the log-magnitude-phase (similar to Figure 8.27), and identify the frequency points for ω equal to 1, 10, 50, 110, and 500. (c) Is the open-loop system stable? Is the closed-loop system stable?
a gambler has a fair coin with one head and one tail and a two-headed coin. he selects one of the coins at random and
In a sample of 50 members of a local health club you find that 12 of these members meet weekly with a physical fitness trainer and that the average body mass index (BMI) of these 12 members is less than the average BMI of the other 38 club members..
Quality Progress, Feburary 2005, reports on the results achieved by Bank of America in improving customer satisfaction and customer loyalty by listening to the "voice of the customer".
What are the differences between regression and correlation analysis? What is correlation? Does correlation prove causation? Why or why not? Explain and provide examples to support your explanation.
Suppose the population standard deviation is 350 kilowatt hours. Determine the standard error of the mean. With a .95 probability, determine the margin of error.
a box contains six tickets. two of the tickets are worth 5 each and the other four are worth 1 each.a if one ticket is
Processing an order for more disks cost $15. Zip uses 60000 disks annually, and the company has a 25% cost of capital. (a) Find the optimal order quantity.
A computer supply house receives a large shipment of floppy disks each week. Past experience has shown that the number of flaws per disk can be described by the following probability distribution:
a competency test has scores with a mean of 69 and a standard deviation of 4. a histogram of the data shows that the
the owners of a two-person business make their decisions independently of each other and then compare their decisions.
The mean age of adult learners in a chosen class of 31 students is 33.8 years. The standard deviation is equal to 7 years.
find the standard normal area for each of the following round your answers to 4 decimal places.standardnormal areaa
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