6. In a cell phone product line, an inspector's job is to examine whether there is any scratch on a screen. To test her performance,
6. In a cell phone product line, an inspector's job is to examine whether there is any scratch on a screen. To test her performance, 250 screens (80 among the 250 have scratches) were sent to the inspector for inspection. The inspector reported 102 screens that she believed to have scratches, but only 68 of the 102 had scratches. Consider a scratched screen as a signal. (8 points) a. What are the probabilities of the four events: hit, miss, false alarm, and correct rejection for this inspector? (4 points)
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