A medical experiment compared the herb Echinacea with a placebo for preventing colds. The study used 50 different response variables usually associated with colds, such as low-grade fever, congestion, frequency of coughing, etc. The subjects were 40 women between 25 and 40 years of age. One response variable was "volume of nasal secretions" (if you have a cold, you blow your nose a lot). The average volume of nasal secretions in people without colds is u = 1, An increase to u = 3 indicates a cold. Which of the following describes the significance level, a of a test of H. =1 versus Hall>l? O The probability that the test rejects Ho when u = 1 is true. O The probability that the test rejects Ho when u = 3 Is true. O The probability that the test falls to reject Ho when u = 3 is true. The probability that the test fails to reject Ho when / = 1 Is true. None of the above