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Category > Math Posted 13 Sep 2017 My Price 12.00

Need help with statistics

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?

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QuickHelper
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Status NEW Posted 13 Sep 2017 05:09 PM My Price 12.00

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