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Informed consent to take blood samples. Researchers from Yale, working with medical teams in Tanzania, wanted to know how common infection with the AIDS virus is among pregnant women in that country. To do this, they planned to test blood samples drawn from pregnant women.
Yale's institutional review board insisted that the researchers get the informed consent of each woman and tell her the results of the test. This is the usual procedure in developed nations. The Tanzanian government did not want to tell the women why blood was drawn or tell them the test results. The government feared panic if many people turned out to have an incurable disease for which the country's medical system could not provide care. The study was canceled. Do you think that Yale was right to apply its usual standards for protecting subjects?
A random sample of 16 airline passengers at the Bay City airport showed that the mean time spent waiting in line to check in at the ticket counters.
Find a 95% confidence interval for the true mean tannin percentage in apples from fertilized trees.- Find a 95% confidence interval for the true mean tannin percentage in apples from unfertilized trees.
If an applicant passes the "aptitude test for managers," what is the probability that the applicant will succeed in a management position?
A random 5-card poker hand is dealt from a standard deck of cards. Find the probability of each of the following possibilities (in terms of binomial coecients).
Superior Construction Pte Ltd is a successful company dealing with many major projects in Singapore. Recently, it has submitted its biddings for two major Government projects. Project A worth about $120 million and the company believes it has 40% ..
Conduct a marketing experiment in which students are to taste 1 of 2 different soft drinks. What is the probability that the sample will have between 50% and 60% of the identificaton
Find the normal frequencies and the form of the normal modes for this system. Write down the form of the general motion.
Your task is to interview a representative sample of attendees for the large concert venue where you work. The new season includes 200 live concerts featuring all types of musicians and musical groups.
given that 10 of all people are left-handed what is the probability that there will be at least 3 left-handed students
Use these data to obtain a 90% confidence interval estimate for the mean starting monthly salary, µ, of all recent graduates with bachelor's degrees in marketing from this university.
The largest salary on the list is $100,000 and is accidentally changed to $1,000,000. What is the new standard deviation?
A medium-sized business operates a small fleet of vehicles. The existing practice is to allocate to each driver a particular area. This area then becomes their ‘patch'. The drivers undertake all the deliveries in their area and only help out in ot..
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