QUESTION 4 Suppose you are an 19th century physician who is interested in determining whether bloodietting can cure fever. Some of your colleagues sweer by bioodieting, which stall
has been practiced for over a thousand years. But others have serious doubts.
To settle the question you recruit 100 patients who are diagnosed with pneumonia when they arrive at your hospital. All the patients have fever on arrival. Your randomly assign
the patients to two groups of 50. One group receives bloodietting the other doesn't At the end of the study, you determine the percentage of patients who recovered from
pneumonia