# Accuracy of Genetic Test using technique of contingency table

Acme Manufacturing Company requires all of its 5000 employees to take a drug test. Suppose 2% of the employees actually use drugs (although the company does not know this number). The drug test is 95% accurate.

1.How many of Acme's employees use drugs?.

2.How many of the employees who use drugs get a positive test result?.

3.How many of the employees who do not use drugs get a positive test result?.

4.Of the employees who get a positive test result, how many of them use drugs? Convert this to a percentage: What percent of people who get a positive result actually use drugs?.

5.State a conclusion about the accuracy of the test.

https://brainmass.com/math/probability/accuracy-genetic-test-technique-contingency-table-609749

#### Solution Preview

1.How many of Acme's employees use drugs?.

Just from the question, 5000*2%=100 employees use drugs

2.How many of the employees who use drugs get a positive test result?.

Just from the question 1, since test is 95% accurate, 100*95%=95 employees get a positive test result

3.How many ...

#### Solution Summary

The solution gives detailed steps on assessing the Accuracy of Genetic Test using technique of contingency table.