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A manual used by the Dallas County district attorney's office from 1968 to 1976 advised, "Do not take [. . .] a member of any minority race on a jury no matter how rich or well educated."
a. Was this an attempt to bias trial results at the sampling stage or at the stage where jurors must reach a conclusion of guilty/not guilty?10
b. In this example, which of these best describes the source of bias: using a volunteer sample, sampling frame not matching population, using a convenience sample, taking a haphazard sample?
Let N(t) be the number of telephone calls received at an exchange in the interval [0,t]. We suppose that {N(t) t ≥ 0} is a Poisson process with rate λ = 10 per hour.
The video makes the point that though nobody wants to think that they are a statistic, acting as if you are a statistic can help you make better decisions. That said, statisticians should never forget that the numbers they analyze correspond to re..
Ten prominent citizens have been nominated for a community's "Citizen of the Year" award. First- and second-place trophies are awarded to the two persons receiving the highest and second-highest number of votes.
an engineer has 3 factors speed temperature and time that she has to understand the effect on volume of liquid
How is the standard deviation of the data affected if there are disproportionately more 0s and 5s? Why can't we use the methods of this section to test that the last digits of the sample data have a standard deviation equal to 3?
Analyse the strengths and weaknesses of the Spanish monarchy in the New World at the end of the sixteenth century.
Use the average response plots to determine the existence of possible interactions B× E and C× F. What are the optimal settings of the design parameters using Taguchi's parameter design approach?
a counter-flow heat exchanger receives 1.2 kgs of 2.0 bar saturated vapor steam that exits at the same pressure. the
write an accurate concluding statement for the following hypothesis tests.a you claim that the mean volume of all 12
find the value of the linear correlation coefficient r. x 22.6 36.6 15.6 35.0 47.5 y 7 6 6 2 6 a 0 b -0.478 c
Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)
One of the questions in a study of marital satisfaction of dual-career couples was to rate the statement "I'm pleased with the way.
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