1. (37 pts.) A psychologist is
Question Description
1. (37 pts.) A psychologist is interested in whether hypnosis affects brain dominance (that is, whether the left or right hemisphere of the brain is dominant). Eleven college students from the freshman class are randomly sampled for an experiment. The experiment has two conditions that are given on different days. In condition 1, the students are hypnotized and then given a test that measures the relative dominance of the right and left hemispheres. The higher the score, the more dominant is the right hemisphere. In condition 2, the same students are given the test again, only this time they are not hypnotized but are in their normal state of consciousness. The following scores are obtained: Student 1 2 3 4 5 6 7 8 9 10 11 Condition 1 26 15 22 19 23 37 16 17 14 16 21 Condition 2 12 13 18 17 21 22 18 22 10 14 15 Answer the following questions and show your work for each mathematical question: A. (2 pts) What is the (non-directional) alternative hypothesis? B. (2 pts) What is the null hypothesis? C. (5 pts) What is the p value? (In other words, what is the probability of getting a result as extreme or more extreme as the observed result purely by chance (2-tailed)?) Show your work. D. (3 pts) For = 0.052 tail, what is your conclusion about the null hypothesis? Justify your answer using the decision rule. E. (3 pts) If you had set = 0.012 tail, what would be your conclusion about the null hypothesis? Justify your answer using the decision rule. F. (2 pts) To what population should the results apply? G. (3 pts) What is the power of this experiment, for = 0.052 tail and Preal = .10? H. (2 pts) What is the probability of making a Type II error in this experiment when = 0.052 tail and Preal = .10? I. (3 pts) What is the power of this experiment, for = 0.012 tail and Preal = .10? J. (2 pts) What is the probability of making a Type II error in this experiment when = 0.012 tail and Preal = .10? K. (3 pts) What is the power of this experiment, for = 0.052 tail and Preal = .40? L. (2 pts) What is the probability of making a Type II error in this experiment when = 0.052 tail and Preal = .40? M. (3 pts) What is the power of this experiment, for = 0.012 tail and Preal = .40? N. (2 pts) What is the probability of making a Type II error in this experiment when = 0.012 tail and Preal = .40?
This question has not been answered.
Create a free account to get help with this and any other question!
Brown University
1271 Tutors
California Institute of Technology
2131 Tutors
Carnegie Mellon University
982 Tutors
Columbia University
1256 Tutors
Dartmouth University
2113 Tutors
Emory University
2279 Tutors
Harvard University
599 Tutors
Massachusetts Institute of Technology
2319 Tutors
New York University
1645 Tutors
Notre Dam University
1911 Tutors
Oklahoma University
2122 Tutors
Pennsylvania State University
932 Tutors
Princeton University
1211 Tutors
Stanford University
983 Tutors
University of California
1282 Tutors
Oxford University
123 Tutors
Yale University
2325 Tutors