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Question: A test for a disease that affects 0.1% of the population is 99% effective on people with the disease (that is, it says they have it with probability 0.99). The test gives a false reading (saying that a person who does not have the disease is affected with it) for 2% of the population without the disease. We can think of choosing someone and testing them for the disease as a two stage process. In stage 1, we either choose someone with the disease or we don't. In stage two, the test is either positive or it isn't. Give a probability tree for this process. What is the probability that someone selected at random and given a test for the disease will have a positive test? What is the probability that someone who has positive test results in fact has the disease?
consider a string of bernoulli trials with probability of success equal to p and let y1 be the number of trials untial
What specific problems arise if you try to conclude that the training program was responsible for the reduction in prejudice?
If were interested in studying obesity in a small sample size of 10 adult men by looking at their body weights and heights, would you say that trimming the mean is a good idea? What are the advantages of trimming the mean in this situation? What a..
MBA 810 - Identify a hypothesis testing problem in print and conduct a survey to verify or dispute the results of the hypothesis test - Conduct your survey. You must have more than 50 responses in your sample. When you hand in your final project.
There are infinitely many prime numbers p of the form 4n+3. In other words, show that there exist infinitely many positive integers, n, such that the number 4n+1 is prime.
Search for and select a quantitative article specific to your discipline and related to t-tests; my discipline is education. Can you find an article about childhood obesity or bullying.
Women with different educational levels seem to have different occupations. Or is this just chance variation?
If the number of recalls in a given month is above more than one standard deviation from the mean, the federal government issues a special warning directed toward parents. What is the probability that a special warning will be issued during a give..
Calculate trial control limits for the two charts and on the assumption that the R chart is in control, estimate the process standard deviation.
At the 5% level of significance, test whether the proportion of internet users paying bills online is now more than 50%.
Find the value of z such that 0.5762 of the area lies between -z and z. Round your answer to two decimal places.
what is the difference between standard normal distribution and t-distribution?could anyone help me this
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