The Ministry of Health has asked a chiropractor to help 100 patients who have been experiencing lower back pain as a result of car accidents. Before the (MoH) will reimburse the chiropractor, they want to see evidence that the treatment reduces pain. To assist the chiropractor, the MoH provides a previously validated a pain scale for the patients to use. The scale is from 1(no pain) to 10 (the worst pain imaginable).