Use the following results from a test for marijuana use, which is provided by a

Question

Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 146 subjects with positive test results, there are 22 false positive results. Among 153 negative results, there are 5 false negative results. Complete parts (e) through (e)(Hint Construct a table) a. How many subjects were incduded 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 marjuana. c. What is the probability that a randomly selected subject did not use manjuana? 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.)

Explanation / Answer

a) total subjects =146+153=99

b)

total number who did not use marijuana =true negative+false posiitve =(153-5)+22 =170

c)probability that a selected person did not use marijuana =170/299 =0.569

please revert for any clarification

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