$9.50 PSY315 Week5 -Ch. 9, Practice Problem: 17 Graded A+ with Proof of grade.Found in Psychology: General-Psychology
Chapter 1, # 0
17. Do students at various colleges differ in how sociable they are? Twenty-five students were randomly selected from each of three colleges in a particular region and were asked to report on the amount of time they spent socializing each day with other students. The results for college X was a mean of 5 hours and an estimated population variance of 2 hours; for College Y, M = 4, S2 = 1.5; and for College Z, M = 6, S2 = 2.5. What should you conclude? Use the .05 level. (a) Use the steps of hypothesis testing, (b) figure the effect size for the study; and (c) explain your answers to (a) and (b) to someone who has never had a course in statistics.
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- Posted on Jun 02, 2011 at 8:00:18PM