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A certain university has 14 vehicles available for use by faculty and staff. Four of these are vans and 10 are cars. On a particular day, only two requests for vehicles have been made. Suppose that the two vehicles to be assigned are chosen in a completely random fashion from among the 14.
(b) Let F denote the probability that the second vehicle assigned is a van. What is P(F | E)?
(c) Use the results of Parts (a) and (b) to calculate P(E and F) (Hint: Use the definition of P(F | E).)
If it rains in Greenville on Monday, there is a 80% chance that it will rain in NC that day. What is the probability it will rain in at least one of the above states.
A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n=15 college students. The SAT scores have a mean of M=580 with SS=22,400, and the GPAs have a mean of 3.10 with SS=1.26, and SP=84.
a random sample of 81 children with working mothers showed that they were absent from school an average of 6 days per
question five thousand randomly-selected mba graduates were surveyed to determine their future plans. the survey
Briefly explain how the difference may have been caused by the treatments b) Briefly explain how the difference simply may be sampling error
The width of the interval without the finite population correction factor is wider than the confidence interval with the finite population correction factor.
Shoveling Heart Rates Because cardiac deaths appear to increase after heavy snowfalls, an experiment was designed to compare cardiac demands of snow shoveling to those of using an electric snow thrower.
the cardboard bales produced at a local recycling depot have an average weight of 400kg with a standard deviation of
an advocacy group is investigating whether gender has an effect on job category in large investment firms. given the
Rosa's Italian restaurant wants to develop forecasts of daily demand for the next week. Develop a forecasting chart, using MS Excel. Include the steps used in your forecast.
Discuss why sampling is essential to many research designs, and why, if done correctly may be more accurate than attempting census measurement.
The country clerk wants to estimate the protection of retired voters who will need special election facilities. suppose a sample of 400 retired voters was taken. If 150 special election facilities, calculate an 80% confidence for the population pr..
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