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Task 2. Errors. Specificity and sensitivity To examine the specificity of a new PCR-type test, it has been used on 1000 healthcare workers in a high-risk environment who had symptoms, knowing that 50 % of them had COVID. The results obtained are summarized in this table: With COVID WITHOUT COVID Total Positive 457 7 464 Negative 43 493 536 Total 500 500 Calculate the significance a, tolerance ẞ, specificity 1-a and sensitivity 1-ẞ of this PCR test. What type of error is most likely in this test? Interpret the results.

Task 2. Errors. Specificity and sensitivity To examine the specificity of a new PCR-type test, it has been used on 1000 healthcare workers in a high-risk environment who had symptoms, knowing that 50 % of them had COVID. The results obtained are summarized in this table: With COVID WITHOUT COVID Total Positive 457 7 464 Negative 43 493 536 Total 500 500 Calculate the significance a, tolerance ẞ, specificity 1-a and sensitivity 1-ẞ of this PCR test. What type of error is most likely in this test? Interpret the results.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Answer all the parts in the questions, show all the working, provide all the R studio codes necessary. 

Task 2. Errors. Specificity and sensitivity To examine the specificity of a new PCR-type test, it has been used on 1000 healthcare workers in a high-risk environment who had symptoms, knowing that 50 % of them had COVID. The results obtained are summarized in this table: With COVID WITHOUT COVID Total Positive 457 7 464 Negative 43 493 536 Total 500 500 Calculate the significance a, tolerance ẞ, specificity 1-a and sensitivity 1-ẞ of this PCR test. What type of error is most likely in this test? Interpret the results.
Transcribed Image Text:Task 2. Errors. Specificity and sensitivity To examine the specificity of a new PCR-type test, it has been used on 1000 healthcare workers in a high-risk environment who had symptoms, knowing that 50 % of them had COVID. The results obtained are summarized in this table: With COVID WITHOUT COVID Total Positive 457 7 464 Negative 43 493 536 Total 500 500 Calculate the significance a, tolerance ẞ, specificity 1-a and sensitivity 1-ẞ of this PCR test. What type of error is most likely in this test? Interpret the results.
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