In Exercise 14.8 why might it be smart to look at the variances of the two groups?
Answer to relevant QuestionsUsing the Java program by Lenth (2011) referred to earlier, calculate power for the Adams et al. (1996) data in Table 14.2 on homophobia. Diagram the answer to Exercise 15.13. (a) What is the a priori power of this experiment? (b) Run the t test on the data. (c) What, if anything, does the answer to (a) have to say about the answer to (b)? Calculate the power of the anorexia experiment in Section 14.1, assuming that the parameters have been estimated correctly. A neuroscience laboratory run by a colleague of mine studied avoidance behavior in rabbits for many years and published numerous papers on the topic. It is clear from this research that, for animals that have not received ...Use the Bonferroni test for the data in Exercise 16.2 to compare the Younger/Low with the Older/Low group, and the Younger/High with the Older/High group.
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