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Title: To study the effectiveness of treatments for insomnia, a sleep researcher conduc Post by: vadiva on Aug 22, 2014 2. To study the effectiveness of treatments for insomnia, a sleep researcher conducted a study with 12 participants. Four participants were instructed to count sheep (Sheep Condition), four were told to concentrate on their breathing (Breathing Condition), and four were not given any special instructions. Over the next few days, measures were taken of how many minutes it took each participant to fall asleep. The average times for the participants in the Sheep Condition were 14, 28, 27, and 31; for those in the Breathing Condition, 25, 22, 17, and 14; and for those in the control condition, 45, 33, 30, and 41.
Do these results suggest that the different techniques have different effects? (Use the .05 significance level.) a. Use the five steps of hypothesis testing. b. Sketch the distribution involved. c. Figure the effect size of the study. d. Explain your findings (including the logic of comparing within-group to between-group population variance estimates, how each of these is figured, and the F distribution). 3. High school juniors planning to attend college were randomly assigned to view one of four videos about a particular college, each differing according to what aspect of college life was emphasized: athletics, social life, scholarship, or artistic/cultural opportunities. After viewing the videos, the students took a test measuring their desire to attend this college. The results were as follows: Desire to Attend this College Athletics Social Life Scholarship Art/Cultural 68 89 74 76 56 78 82 71 69 81 79 69 70 77 80 65 Do these results suggest that the type of activity emphasized in a college film affects desire to attend that college? (Use the .01 significance level.) a. Use the five steps of hypothesis testing. b. Sketch the distribution involved. c. Figure the effect size of the study. d. Explain the logic of what you have done to a person who is unfamiliar with the analysis of Title: Re: Scoi 332 week 7 exercise new... computer crashed with SPSS program on it Post by: bio_man on Aug 22, 2014 2. To study the effectiveness of treatments for insomnia, a sleep researcher conducted a study with 12 participants. Four participants were instructed to count sheep (Sheep Condition), four were told to concentrate on their breathing (Breathing Condition), and four were not given any special instructions. Over the next few days, measures were taken of how many minutes it took each participant to fall asleep. The average times for the participants in the Sheep Condition were 14, 28, 27, and 31; for those in the Breathing Condition, 25, 22, 17, and 14; and for those in the control condition, 45, 33, 30, and 41. Do these results suggest that the different techniques have different effects? (Use the .05 significance level.) a. Use the five steps of hypothesis testing. b. Sketch the distribution involved. c. Figure the effect size of the study. d. Explain your findings (including the logic of comparing within-group to between-group population variance estimates, how each of these is figured, and the F distribution). Attached... Title: Re: To study the effectiveness of treatments for insomnia, a sleep researcher conduc Post by: leebee1080 on Oct 15, 2014 Thank you so much for your help!
Title: Re: To study the effectiveness of treatments for insomnia, a sleep researcher conduc Post by: bio_man on Oct 15, 2014 You're welcome!
Title: Re: To study the effectiveness of treatments for insomnia, a sleep researcher conduc Post by: kayceeinfinite on Nov 12, 2014 Thank you so much!!
Title: Re: To study the effectiveness of treatments for insomnia, a sleep researcher conduc Post by: hawk60 on Dec 10, 2014 Thanks, good example problem
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