II. In a sample of 664 patients who received this training, suppose that 47 showed reduced allergic reactions and 17 showed increased allergic reactions. Are these results sufficient to conclude that the self hypothesis has a significant effect. Assume that increasing and decreasing allergic reactions are equally likely if the training has no effect. Use alpha = 0.05.
III. Gender differences in dream content are well documented (see Winget & Kramer, 1979). Suppose a researcher studies aggression content in the dreams of men and women. Each participant reports his or her most recent dream. Then each dream is judged by a panel of experts to have low, medium, or high aggression content. The observed frequencies are shown in the following matrix:
Low Medium High
Gender Female 18 4 2
Male 4 17 15
Is there a relationship between gender and the aggression content of dreams? Test with alpha = 0.01.
This solution is comprised of a detailed explanation of the various aspects of Hypothesis Tests as they pertain to the given problems. Supplemented with Interactive EXCEL sheet, the solution provides students with a clear perspective of the calculations and underlying concepts.