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A simplified model of the control system for regulating the pupillary aperture in the human eye is shown in Figure P9.12 [20].The gain K represents the pupillary gain, and τ is the pupil time constant, which is 0.5 s. The time delay 7" is equal to 0.5 s. The pupillary gain is equal to 2.
(a) Assuming the time delay is negligible, sketch the Bode diagram for the system. Determine the phase margin of the system, (b) Include the effect of the time delay by adding the phase shift due to the delay. Determine the phase margin of the system with the time delay included.
in a survey of 604 males ages 18-64 397 say they have gone to the dentist in the past year.the 90 confidence interval
an auditor takes a random sample of size n110 from a large population. the population standard deviation is not known
To test this notion, eight paid volunteers were placed (individually) in a room in which there was no light from the outside and no clocks or other indications of time.
Determine if the sample result indicates that the population variance is decreased from historical value of 0.35. At alpha = 1%, give values for test and critical statistics.
You randomly select one card from a 52-card deck. Find the probability of selecting: P(an ace or a 9)
discuss why the sampling distribution will be less variable than the population distribution. give a short example to
Using the levels of significance given below: What is the rejection point at α = .10 and indicate if you would accept or reject H o ? t .10 =
suppose that the drying time for a certain type of paint under specified test conditions is known to be normally
At a fair run by a local charity organization, it costs 50 cents to try one's luck in drawing an ace from a deck of 52 playing cards. What is the expected profit per customer
Formulate a spreadsheet model for performing a computer simulation of the daily sales. Perform 250 replications and obtain the average of the sales over the replications.
If you have multiple regression output with 2 independent variables and R-Square is .9682, what does R-Square indicate?
Does this sample give sufficient evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of general population? Use two-tailed test with α = .01.
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