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In a certain country, 9% of the population have a certain disease. A diagnostic blood test has been developed for the disease. If a person has the disease, the result is positive 99% of the time while if he doesn't has the disease, the result is positive 2% of the time.
If a person gets a positive blood test, what is the probability that he has the disease?
The same test is used in another country, and it is found that 25% of a sample population tests positive. If we assume this sample is representative, what fraction of the population has the disease?
two prison inmates communicate in binary by tapping on the adjacent wall. suppose that the probability of receiving a
an open-label study where participants are aware of the treatment they are taking is run to assess the time to pain
Uising a level of significance of .10, is there evidence that the population mean weight of the hats is greater than 3.5 pounds?
Under what circumstances should a nonparametric test be used? Explain. What are the strengths and weaknesses of nonparametric tests?
Find the probability that the first marble drawn was blue given that the second marble drawn was red and what is the range space RY of this new random variable Y and give the probability distribution of Y in tabular form
consider an m state markov chain with transition matrix pij. note as usual the sum of the entries in any row add to
What is the probability of receiving more than three pieces of junk mail today?
Distributed with the following parameters: μ1 = 100, σ1 = 4, μ2 = 75, σ2 = 4, μ3 = 75, and σ3 = 2. What is the probability that an assembly chosen at random will have combined dimension in excess of 262?
The professor has informed us that 7.93 percent of her students received grades of A What is the minimum score needed to receive a grade of A?
You had calculated the following measures of central tendency: the mean, the median, and the mean trimmed 25%. Which of these measures of central tendency will change when you correct the recording error?
At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer make? Please provide step by step solution.
Is there sufficient evidence to conclude that a difference exists between the proportions of cats and dogs that sleep more than 10 hours per day?
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