Question: A clinical trial evaluated a new compound designed to improve wound healing in trauma patients. The new compound was compared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of wound healing was measured and the data are shown in table 7-45. Is there a difference in the extent of wound healing by treatment? Run the appropriate test at a 5% level of significance. (hint: are treatment and the percent of wound healing independent?)