Question

In: Statistics and Probability

A method for identifying asthma from a sample of saliva was developed. The method was tested...

A method for identifying asthma from a sample of saliva was developed. The method was tested on 150 healthy participants and 150 patients with asthma. The obtained test results are summarized in the following table:

Participants

Test result

With asthma(1)

Healthy (0)

Positive (1)

113

16

Negative (0)

37

134

Find:

  1. Sensitivity;
  2. Specificity;
  3. Diagnosic accuracy;
  4. Positive predictive value;
  5. Negative predictive value;

Interpret the obtained results.

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Compounds in the saliva, hair and urine of pets may potentially trigger asthma in some patients....
Compounds in the saliva, hair and urine of pets may potentially trigger asthma in some patients. To test this hypothesis, some researchers conducted a study. As test subjects, they used 8 families, 4 of which had a pet in their home and 4 did not. They measured respiratory flow of each family member, as this is known to decrease in patients with asthma. Recent research has shown body weight to correlate with asthma in children, and sex, age, and height...
In 2018 a small biotech company has developed a saliva test for Alzheimer's disease, published a...
In 2018 a small biotech company has developed a saliva test for Alzheimer's disease, published a short paper in the journal of Alzheimer's disease, in which they claimed that nonsteroidal anti-inflammatory drugs (NSAIDs) such as Ibuprofen (Advil) can prevent Alzheimer's disease from progressing if the disease is detected early enough. What was the raisonning? How ever other others have suggested that that this claim is misleading, why? Can you show me your sources please.
A sample of 15 patients suffering from asthma participated in an experiment to study the effect...
A sample of 15 patients suffering from asthma participated in an experiment to study the effect of a new treatment on pulmonary function. Among the various measurements recorded were those are forced expiratory volume (liters) in 1 second (FEV1) before and after application of the treatment. Suppose the researcher would like to test if the treatment is effective in increasing the FEV1. Please clearly state the hypotheses, carry out the test and state your conclusion for the tests listed below....
2. A new method is developed to determine the content of sodium in a biscuit sample....
2. A new method is developed to determine the content of sodium in a biscuit sample. Student A gets the following results: 24.2, 23.9, 25.0, 23.7 and 25.2 mg, while student B obtains 22.6, 21.9, 23.2 and 23.1 mg. (a) Report 95% confidence interval of their results individually. Why the standard deviations are non-zero? (b) At the 95% confidence level, does one of them get more reproducible measurements? (c) At the 95% confidence level, do they obtain different results? What...
The following data come from a study that examines the efficacy of saliva cotinine as an...
The following data come from a study that examines the efficacy of saliva cotinine as an indicator for exposure to tobacco smoke. In one part of the study, seven subjects – none of whom were heavy smokers and all of whom had abstained from smoking for at least one week prior to the study- were each required to smoke a single cigarette. Samples of saliva were taken from all individuals 2, 12, 24, and 48 hours after smoking the cigarette....
A random sample of 6IC's is taken from a large consignment and tested in two independent...
A random sample of 6IC's is taken from a large consignment and tested in two independent stages. The probability that an IC will pass either stage is p.All the 6IC's are tested at the first stage. If 5 or more pass the test, those which pass are tested at the second stage.The consignment is accepted if there is at most one failure at each stage. a) what is the probability that stage two of the test will be required? b)...
If the unknown sample was tested to have above normal levels of bilirubin (it tested to...
If the unknown sample was tested to have above normal levels of bilirubin (it tested to have high bilirubin levels), what other biochemistry tests should be performed? Justify your answers.
What is the advantage of using rDNA as a rapid method of identifying organisms? Is it...
What is the advantage of using rDNA as a rapid method of identifying organisms? Is it necessary to have a culture to be able to carry out this detection? What method of identification would you use to identify an organism and why?
What is a method of reducing cost by identifying parts in different products that are common...
What is a method of reducing cost by identifying parts in different products that are common and interchangeable?
Which of the following is a method of reducing costs by identifying parts in different products...
Which of the following is a method of reducing costs by identifying parts in different products that are common and interchangeable? Group technology Theory of constraints Concurrent engineering Value chain analysis
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT