Trasact business in a foreign language
The probability that an American CEO can transact business in a foreign language is 20%. Ten American CEO s are chosen at random. WHat is the probability that at least two, but no more than five can trasact business in a foreign language?
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Determine the static head efficiency required of the turbine if the total pressure of its exhaust is not to be less than 1.6 bar and the exhaust velcotiy is 300 m/s.
The bailey agency is studying long distance calls made from there office. They find that the length of calls follows a normal distribution, with a mean of 4.2 minutes and a standard deviation of 0.60 minutes.
Knowing that E = 3.2 GPa, that the maximum allowable normal stress is 40 MPa, and that the length of the thread must not increase by more than 1%, determine the required diameter of the thread.
Determine the critical values. Will the researcher reject the null hypothesis? Explain why for the classical method
What diameter should the hovercraft deck be to operate at this condition, and what will be the resulting hover gap height? Assume the density of air is 1.17 kg/m3.
In 1990, the mean ph. level of rain in town was 4.61. A biologist fears the ph. level has recently increased. She draws a sample of 13 rain dates and obtains this data:
Test at the 1% level of significance whether this data supports the contention that the true average yield for this kind of wheat is less than 2.0 tons per acre.
If the die is rolled 25 times, what is the probability that an odd number occurs exactly 14 times? b) What is the expected value of a single roll of the die?
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1. Exploring the concept of sexual health and its key components which define it 2. Reflecting on the fundamental epidemiological questions
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