Imagine a population in the midst of an epidemic where 60% of the population is considered...

Imagine a population in the midst of an epidemic where 60% of the population is considered susceptible, 10% are infected, and 30% are recovered. There is only one test for the disease. For susceptible patients the test is accurate (i.e. returns a negative result) 95% of the time. For infected patients the test is correct (i.e. returns a positive result) 99% of the time. The test is correct (i.e. returns a negative results) 65% of the time for recovered individuals.
a) Find the probability a patient actually is infected given they received a positive test result. Circle your ﬁnal answer. Hint: It may be helpful to draw a tree diagram.
b) Are the events of “being susceptible” and “having a positive test result” independent? Circle one of the options and provide justiﬁcation for your answer.
YES NO

Expert Solution

orchestra answered 2 years ago

A population of young people was studied where the variable weight has an average of 60...

A population of young people was studied where the variable weight has an average of 60 kilograms. The standard deviation is 5 kilograms, and the serura variable presented an average cone of 1.70 meters and its standard deviation 10 centimeters. Calculate the probability of finding young people weighing over 58 kilograms and measuring less than 1.80 meters.

Imagine yourself as physician in Philadelphia during the Yellow Fever epidemic. A patient comes to you...

Imagine yourself as physician in Philadelphia during the Yellow Fever epidemic. A patient comes to you with the symptoms of Yellow Fever. In at least 200 words explain how you would treat this patient. In answering, address whether you will follow Benjamin Rush’s line of treatment for Yellow Fever, whether you think he is acting as a good doctor, and why.

Childhood obesity is now considered a growing epidemic as of 2012 over 1/3 of children and...

Childhood obesity is now considered a growing epidemic as of 2012 over 1/3 of children and adolescents were overweight or obese there are many factors that have been implicated in the increasing rates of overweight and obesity activity marketing of unhealthy foods socioeconomic status and genetics many other factors please choose one factor you see is the greatest driver of childhood overweight and obesity and discuss why are you feel this factor is the greatest driver of obesity in children

Question) Erika lives in a small town that is currently having a flu epidemic. Approximately 60%...

Question) Erika lives in a small town that is currently having a flu epidemic. Approximately 60% of the 5000 residents have the flu. If the flu test is 95% accurate (for both sensitivity and specificity), create a table to show the results if all 5000 residents are tested. How many of the 5000 test results are true positive? QUESTION) Erika lives in a small town that is currently having a flu epidemic. Approximately 60% of the 5000 residents have the...

1. Prior to the AIDS epidemic, what type of population growth was occurring in sub-Saharan Africa?...

1. Prior to the AIDS epidemic, what type of population growth was occurring in sub-Saharan Africa? 2. Approximately how many people in sub-Saharan Africa are infected with HIV? How many died in the last year? 3. What sorts of general changes will this dramatic number of deaths cause to the population structure of these sub-Saharan African countries? 4. What will happen to the age structure of the population? What about birthrates? 5. Although there have been many efforts to help...

In Africa, the continent where the polio epidemic has been most difficult to control, international relief...

In Africa, the continent where the polio epidemic has been most difficult to control, international relief efforts aimed at disease eradication often work against a backdrop of civil unrest and war. In some countries, temporary cease-fire agreements must be negotiated to allow vaccination and prevent serious outbreaks from occurring. During peacetime and during war, low incomes make paying for the vaccine a real problem among the poor. To make the oral polio vaccine more affordable, either consumer purchases (demand) or production (supply) can...

Discuss how society might solve the heroin epidemic on Long Island. Where are the drugs coming...

Discuss how society might solve the heroin epidemic on Long Island. Where are the drugs coming from, and has the so called "War on Drugs" been effective at all?

imagine a scenario where you are the owner of a medium sized business(150 employees) where the...

imagine a scenario where you are the owner of a medium sized business(150 employees) where the employees have expressed their displeasure regarding working conditions, long hours, retirement benefits, wages, and poor management. Identify at least 5 strategies you could implement to address the concerns of your employees and describe how these strategies would be implemented and by whom.

Imagine that we are studying the colour coat of a population of chamoix in the Alps....

Imagine that we are studying the colour coat of a population of chamoix in the Alps. There are two morphs, white and dark brown, which we know to be genetically determined. (a) We observe that the frequency of brown decreased quite substantially between 2010 and 2011. Give 4 different potential explanations for this decrease (b) Imagine that we observe that the frequency of brown varies erratically over the next 4 years. Give two potential explanations for the changes in the...

The population proportion is .60. What is the probability that a sample proportion will be within...

The population proportion is .60. What is the probability that a sample proportion will be within +/- .02 of the population proportion for each of the following sample sizes? Round your answers to 4 decimal places. n=100 n=200 n=500 n=1000

Question