SOLUTION: Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 144 subjects with positive test results, there are 26 fals
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-> SOLUTION: Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 144 subjects with positive test results, there are 26 fals
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Question 1182304: Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 144 subjects with positive test results, there are 26 false positive results. Among 151 negative results, there are 4 false negative results. Complete parts (a) through (c). (Hint: Construct a table.)
a. How many subjects were included in the study?
The total number of subjects in the study was.......
b. How many subjects did not use marijuana?
A total of.... subjects did not use marijuana.
c. What is the probability that a randomly selected subject did not use marijuana?
The probability that a randomly selected subject did not use marijuana is ....
(Do not round until the final answer. Then round to three decimal places as needed.)
You can put this solution on YOUR website! ==== Test+--------Test- ------Total
Use+==118-----------4----------122
Use-===26-----------147---------173
Total---144----------151----------295
a. 295
b.173
c.173/295, or 0.586
