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A system's open-loop transfer function is a pure time delay of 0.5 s, so that G(s) = e-s/2. Select a compensator Gc(s) so that the steady-state error for a step input is less than 2% of the magnitude of the step and the phase margin is greater than 30°. Determine the bandwidth of the compensated system and plot the step response.
a government testing agency studies aspirin capsules to see if customers are getting cheated with capsules that contain
The manager of a service station is in the process of analyzing the number of times car owners change the oil in their cars. She believes that the average motorist changes his or her car's oil less frequently than recommended by the owner's manual (t..
To model this fact, we assume that only half of the goods produced during a week can be used to meet the current week's demand (assume that all of the prior week's ending inventory can be used to meet the current week's demand). Determine how to m..
explain the role of probability in the interpretation of the meaning of inferential
We're going to use the statistical software, Statistical Package for the Social Sciences or SPSS, to work with data in this class. It analyzes data on a spreadsheet. The data must be entered on the spreadsheet correctly for the analyses to be corr..
When should researchers use different hypothesis tests for independent and related samples? Is one type of sample preferable over the other?
Suppose 3 high school students are randomly selected from different schools. What is the probability that all graduate?
a random sample of 50 price changes is selected from the many listed for a large super- market during a reporting
How would you use the "margin of error" in estimating the percentage of all adults who think that Venetian blinds are the hardest to clean?
We wish to compare the average sales in two shops, to see if the population mean of the first one is higher than the second one. One shop had 100 sales averaging $94, with a standard deviation of $40.
in a sample of 7 cars each car was tested for nitrogen-oxide emmissions in grams per mile and the following results
What hypothesis testing model (my “models” handout) would be used under each of the following conditions. Use the “model number” from my handout if you wish. By line the information given in each cell is: Level of measurement, number of groups, sampl..
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