In a study of therapies for teenage girls dealing with anorexia, each of 29 girls was weighed before beginning treatment and after treatment. For one of the therapies referred to as cognitive behavior therapy, the mean weight change was 3.0 pounds with a standard deviation of 7.32 pounds. Researchers hoped to show the therapy would help the girls gain weight. What is the p-value in this study for a test of a one-sided alternative?