The chair of a psychology department suspects that some of his faculty are more popular than others. There are three sections of Introductory Psychology (taught at 10:00 am, 11:00 am, and noon) by Professors Anderson, Klansky, and Kamm. The number of students who enroll for each section are given.
Run the appropriate chi-square test and interpret the results.
Answer to relevant QuestionsUse the data in Exercise 19.8 to demonstrate how chi-square varies as a function of sample size. (a) Double each cell entry and recompute chi-square. (b) What does this have to say about the role of the sample size in ...Stress has long been known to influence physical health. Visintainer, Volpicelli, and Seligman (1982) investigated the hypothesis that rats given 60 trials of inescapable shock would be less likely to later reject an ...Combine the data in Exercise 19.14 by adding together the Maintainers and Gainers categories. Then compute an odds ratio to say something about racial differences in high school girls’ perceptions of weight. Combine the data from Exercises 19.5 and 19.6 into a two-way contingency table and run the appropriate test. How does the question that the two-way classification addresses differ from the questions addressed by Exercises ...As an alternative method of evaluating a group home, suppose we take 12 adolescents who have been declared delinquent. We take the number of days truant during each of three time periods: (1) the month before they are placed ...
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