Recall the American Heart Association Conference (Nov. 2005) study to gauge whether animal-assisted therapy can improve the physiological responses of heart failure patients. A team of nurses from the UCLA Medical Center randomly divided 76 heart patients into three groups. Each patient in group T was visited by a human volunteer accompanied by a trained dog, each patient in group V was visited by a volunteer only, and the patients in group C were not visited at all. The anxiety level of each patient was measured (in points) both before and after the visits. The accompanying table gives summary statistics for the drop in anxiety level for patients in the three groups. Suppose the anxiety level of a patient selected from the study had a drop of 22.5 points. From which group is the patient more likely to have come? Explain.
Answer to relevant QuestionsFor a quantitative data set a. What is the 50th percentile called? b. Define QL. c. Define Qu. Refer to the Reading in a Foreign Language (Apr. 2004) experiment to improve the Japanese reading comprehension levels of 14 University of Hawaii students, presented in Exercise. The data on number of books read and grade ...Refer to the Current Allergy & Clinical Immunology study of the use of local anesthetics in dentistry, presented in Exercise. Recall that the mean number of units (ampoules) of local anesthetics used per week by dentists was ...Zoologists at the University of Western Australia conducted a study of the feeding behavior of black bream (a type of fish) spawned in aquariums. (Brain, Behavior and Evolution, April 2000). In one experiment, the zoologists ...The Condor (May 1995) published a study of competition for nest holes among collared flycatchers, a bird species. The authors collected the data for the study by periodically inspecting nest boxes located on the island of ...
Post your question