Question

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 22 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 □.

Explanation:

Step1: Identify positive and negative results

The number of positive - test subjects is 144 and the number of negative - test subjects is 151.

Step2: Calculate total number of subjects

The total number of subjects is the sum of positive - test and negative - test subjects. So, we use the formula \(Total=Positive + Negative\).
\[Total = 144+151\]
\[Total=295\]

Answer:

295