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A survey asked, "On how many occasions (if any) have you sniffed glue, breathed the contents of an aerosol spray can, or inhaled other gases or sprays, to get high during the past 30 days?" Response options were "0 occasions, 1-2 occasions, 3-5 occasions, 6-9 occasions, 10-19 occasions, 20-30 occasions, 40 or more occasions." An alternative wording would have been "Have you sniffed glue, breathed the contents of an aerosol can, or inhaled other gases or sprays, to get high during the past 30 days? If so, on how many occasions? _______" For which wording are students more likely to admit (or simply claim) to have engaged in the above-mentioned behaviors, the first or the second?
suppose the counts recorded by a geiger counter follow a poisson process with an average of two counts per minute.a
Using the "crisis" and "noncrisis" phone call example, we define: Event A: The next phone call will come from Brian.
Use backward elimination stepwise regression to determine which combination of the oil derivative prices drive the CPI.
Can you conclude that engineers follow an accident profile that is different from the rest of the drivers in the region?
Search the Internet to find three applications of statistical concepts that you find interesting, that you encounter on a daily basis, or that you find in your profession.
A recent poll of voters showed that 50% of them support the mayor. What is the probability that in a random sample of 16 voters, exactly 8
the average cost per square foot for the office rental space in the central business district of petaling jaya is
Run the regression and summarize the results. Write the statistical model for this analysis. Include all assumptions
A random sample of 500 participants was recruited for the study ? Subjects were allowed to elect to participate in an 3-month exercise program or serve as a control subject (190 chose the program, 310 chose to serve as controls)?
let x be normally distributed random variable with mean u and variance s2 4.84. determine the the size of the sample
At the 0.05 level, can we con- clude that the geographical distribution of hotline callers could be the same as the U.S. population distribution?
How consistent are people in their voting habits? Do people vote for the same party from election to election?
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