Two different samples of 21 men are brought into a room and told they are to help another person in the next room learn a simple problem by giving himan clectric shock as a punishment for wrong responses. The participant has a dial with 20 levels of shock that he can administer, 20 being the highestlevel. Another person is with the participant during the observation; he encourages one group to administer higher and higher levels of shock, whereas hedoes not encourage members of the other group. The person supposedly receiving the shocks and the "persuader" are really actors, but the peopleadministering the "shocks" do not know this. The point of the study is to test whether people are influenced by pressure from others when given theopportunity to hurt other individuals without fear of disapproval. The results are these:The average shock level administered by 21 participants encouraged to use higher levels was 16.2 (s1-11.97), and that administered by the other groupwas 13.8 (s22=13). Determine if there is a significant difference between the two groups. Use a-.05, two-tailed.Calculate t obtained for this test (show as much work as you can).e 3 (12pt)TTT Arial

Answered: Image /qna-images/answer/2c0ebd58-9c90-4c08-8895-ceabd2d0dc25.jpg

Answered: Two different samples of 21 men are…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher is interested in determining if sleeping more hours the night before an exam will improve student math practice test scores. She randomly divides the class into two groups. One group is instructed to sleep 9 hours. The other group is instructed to sleep 6 hours. Students were asked to complete a practice math test the following day. The researcher then compares the average test score of each group. What is the DV? O the class O the researcher average test score O sleep (9 hours vs 7 hours)
this is part 2 of a question. Although older Americans are most afraid of crime, it is young people who are more likely to be the actual victims of crime. It seems that older people are more cautious about the people with whom they associate. A national survey showed that 10% of all people ages 16-19 have been victims of crime.† At a high school, a random sample of n = 66 students (ages 16-19) showed that r = 11 had been victims of a crime. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value a small amount and thereby produce a slightly more "conservative" answer. Find a 90% confidence interval for the proportion of students in this school (ages 16-19) who have been victims of a crime. (Round your answer to three decimal places.) lower limit upper limit (c) How large a sample size should be used to be 95% sure that the sample proportion p̂ is within…
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