Question: A medical researcher claims that she has developed a test that will identify the onset of the common cold 48 hours before symptoms appear. This knowledge, it is claimed, would enable a person to take action which would reduce the severity of cold symptoms. In clinical trials, the test gave false negative results 13 times in 120 subjects. Calculate the probability of a false negative. (Round to the nearest thousandth.)

Is a false negative result for this test an unusual event? Consider an event with probability of .05 of less to be unusual. Yes or No