Transact business in a foreign language
The probability that an American CEO can transact business in a foreign language is 20%. 10 American CEOs are chosen at random.
What is the probability that at least two, but no more than five can transact business in a foreign language?
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Find a 90% confidence interval for the difference between true average proportional stress limits for the Red oak and that for the Douglas fir. Interpret your result.
An article in a medical journal found that percutaneous nephrolithotomy (PN) had a success rate in removing kidney stones of 289 out of 350 patients. The traditional method was 78% effective. Is there evidence that the success rate for PN is great
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You are the VP for the cardiovascular service line at a hospital. A nurse manager on the step-down-unit tells you about a study she just read that she thinks could benefit her floor.
The probability that an American CEO can transact business in a foreign language is 20%. 10 American CEOs are chosen at random. What is the probability that at least two, but no more than five can transact business in a foreign language?
From the data bank, select a random sample of 30 individuals. Use the z test to test the hypothesis for IQ that u= 100. Use a = .05.
A tank contains 0.9 m^3 of helium at 200 kPa and 20 C. Estimate the total mass of this gas in, kg. How much heat transfer, in MJ, is required to expand this gas at constant temperature to a new volume of 1.5 m^3.
The weekly mean income of a group of executives is $1000 and the standard deviation of this group is $100. The distribution is normal. What percent of the executives have an income between $1000 and $1100?
Hydrogen gas is contained in a vertical piston-cylinder device at 14.7 psia and 15 ft3. What is the total work done (Btu) during the expansion process?
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