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Illegal guns.
A study by the U.S. Bureau of Alcohol, Tobacco, and Firearms (BATF) (USA Today, 22 June 2000) surveyed 1530 investigations by the U.S. BATF into illegal gun trafficking from July 1996 through December 1998. The study reports the portion of cases that were the result of each of five gun-trafficking violations:46% Straw purchase (legal gun buyer acting on behalf of an illegal buyer)21% Unlicensed sellers14% Gun shows and flea markets14% Stolen from federally licensed dealers10% Stolen from residences
a) State the W s for this study to the extent that the story gives them.
b) What do you notice about the percentages listed? What does that probably mean?
c) Make a bar chart to display these results, and label it correctly.
What is the temperature of the interior enclosure wall? If the interior surface is maintained at this temperature, but is now polished, what will be the value of the radiant power emitted from the opening?
a real estate company wants to study the relationship between house sales prices and some important predictors of sales
Obtain descriptive statistics and graphic displays for these salt taste indices. Do the indices appear to be normally distributed? Why or why not?
45% of the students at U of M do neither have a tattoo nor a body piercing (other than an ear piercing). 40% of the students at U of M have a tattoo. 30% of the students at U of M have a body piercing
Let µ be a finite Borel measure on a separable metric space S. As- sume µ({x }) = 0 for all x ∈ S. Prove that there is a set A of first cat- egory (a countable union of nowhere dense sets; see Theorem 2.5.2) with µ(S\ A) = 0.
compute the SST, SSE, and SSR
the average magnesium concentratioin in ground water around metro city is mu65.6 parts per million ppm with a standard
The Dean is hanging his head in shame. He realizes his failings in designing an adequate research design to assess the effects of the move on majors and has revised the proposal.
The accompanying data on y 5 energy output (W) and x = temperature difference (°K) was provided by the authors of the article "Comparison of Energy and Exergy Efficiency for Solar Box and Parabolic Cookers" (J. of Energy Engr., 2007: 53-62).
in a study of redgreen color blindness 950 men and 2000 women are randomly selected and tested. among the men 83 have
Determine the expected value of the right to sample. (Hint: If the merchant samples the fruit, what are the probabilities of accepting a Good box, accepting a Bad box, and not accepting the box? What are these probabilities if he does not sample t..
Leaks occur in a pipeline at a mean rate of 4 leaks per 1,000 meters. In a 2,500-meter section of pipe, (a) Using the Poisson approximation to the binomial find the probability of no leaks? (Round your answer to 6 decimal places.)
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