(a) Many companies test employees for recreational drug use. What simple diagnostic test procedure for whether the employee has used drugs has sensitivity equal to 1? Recall that the sensitivity of a...

(a) Many companies test employees for recreational drug use. What simple diagnostic test procedure for whether the employee has used drugs has sensitivity equal to 1? Recall that the sensitivity of a test procedure is the probability that the test detects the indicated problem given that the problem is present. (Hint: To obtain this high sensitivity, this simple procedure requires neither messy measurements nor data.)

(b) What is the problem with such a test procedure?