Assume a disease is found in 0.1% (1 out of 1000) of the population. A test...

Assume a disease is found in 0.1% (1 out of 1000) of the population. A test for the disease has a sensitivity of 96% and a specificity of 98%. Given that you tested positive for this disease,what is the probability that you truly have the disease?

Expert Solution

orchestra answered 2 years ago

A particular heart disease is said to have a prevalence of 1/1000 in a specific population....

A particular heart disease is said to have a prevalence of 1/1000 in a specific population. In a sample of 50 people chosen randomly, what is the probability that at least two people have this disease?

Assume there is a medical test to diagnose a disease. If a person has the disease,...

Assume there is a medical test to diagnose a disease. If a person has the disease, the probability of having positive test result is 98 percent. If a person does not have the disease, the probability of having negative test results is 99.6 percent. The probability that a person has a disease is 1 percent in the population. Answer the following questions: a) If a person has a positive test result, what is the probability that he/she has the disease?...

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Now let’s examine the effect of migration out of a population. The starting population of 1000...

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1. Test the claim about the population mean, ?, at the level of significance, ?. Assume the population is normally distributed. Claim: ? ≤ 47, ? = 0.01, ? = 4.3 Sample statistics: ?̅ = 48.8, ? = 40 A. Fail to reject ?0. There is enough evidence at the 1% significance level to support claim. B. Not enough information to decide. C. Reject ?0. There is enough evidence at the 1% significance level to reject the claim. 2. Use...

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Researchers use Elisa to test for Lyme disease. Lyme disease infects 0.0009 of the US population...

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Let’s assume there is 1 fake coin out of 1000 coins. ( P[Coin=fake] = 0.001 )...

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In zebra fish, assume that a population is found that is polymorphic for a black spot...

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Assume that you have observed 2 prevalent cases of Parkinson’s Disease in a cohort of 1000 people. Calculate the lower 1-sided p-value associated with the hypothesis that the true prevalence equals 0.4% using the binomial, Poisson, and normal distributions. Report to three decimal places.

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