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A designer, wanting to achieve a stable gain of 100 V/V at 5 MHz, considers her choice of amplifier topologies. What unit y-gain frequency would a single operational amplifier require to satisfy her need? Unfortunately, the best available amplifier has an ft of 40 MHz. How many such amplifiers connected in a cascade of identical non inverting stages would she need to achieve her goal? What is the 3-dB frequency of each stage she can use? What is the overall 3-dB frequency?
Population standard deviation of 5 and you select a sample size of 100, what is the probability that the sample mean is between 47 and 49.5?
Survey was mailed to a total of 400 students; 100 were randomly selected from each of the freshman, sophomore, junior and senior classes last semester. What sampling method was used?
A random sample of 180 full-grown lobsters had a mean weight of 16 ounces and a standard deviation of 3.0 ounces. Construct a 98 percent confidence interval for the population mean.
What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation. What is the probability that all three lines experience a surface finish problem between 20 and 40 hours of operation.
identify the sample space of the probability experiment and determine the number of outcomes in the event. draw a tree
probability of a sum that is even and less than 5
If we are dealing with non-normal data we use Chebychev's Theorem. While not as precise, it does provide some level of utility. If we use Chebychev
The following estimated regression model was developed relating yearly income (Y in $1,000s) of 30 individuals with their age (X 1 ) and their gender (X 2 ) (0 if male and 1 if female).
The Tycron Company produces three electrical products-clocks, radios, and toasters
in a data communication system several messages that arrive at a node are bundled into a packet before they are
a professor is interested in whether there is a difference in counseling students statistics competency scores among
In a survey of 2480 golfers, 15% said they were left-handed. Construct to the 95% confidence interval for the population proportion p. Construct a 95% confidence interval for the population proportion p of left-handed golfers.
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