Does stress affect the recall ability of police witnesses? This issue was studied in an experiment that testedeyewitness memory a week after a nonstressful interrogation of a cooperative suspect and a stressful interrogation[the way of questioning] of an uncooperative suspect. The numbers of details recalled a week after the incident aresummarized in the margin (based on data from "Eyewitness Memory of Police Trainees for Realistic Role Plays," byYuille et al., Journal of Applied Psychology, Vol. 79, No. 6). Use 0.01 level of significance to test the daim in theartidle that stress decreased the amount recalled. Assume equal population variances.NonstressStressn = 40X= 53.3n2 = 40= 45.3S, = 13,2S = 11.6a. Claim (in symbolic form):Ho:На:b. level of significance:test-statistic:tail of distribution:c. Decision Rule: Reject Ho ifd. Computatione. Decision (Reject Ho or Failed to reject Ho)f. Conclusion

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Answered: Does stress affect the recall ability…

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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We are interested in analysing the effect of the lockout laws introduced in some areas of the Sydney CBD and nearby surrounds on the number of alcohol-related violent incidents. Suppose we have two samples of data on the number of violent incidents in a number of local areas of the Sydney CBD and nearby surrounds. Pubs, hotels and clubs located in a subset of these areas became subject to the lockout laws when they were introduced in 2014. The first sample is from 2010 before the introduction of the lockout laws, and the second is from 2015 after the introduction of the law. The hypothesis we wish to test is that the introduction of the lockout laws reduces violent incidents in the areas in which the lockout laws were put in place. We use a difference-in-difference model on the pooled data from 2010 and 2015. We find the following results: viol_inc hat = 33.21 (5.29) + 12.43lockout (7.01) – 4.19Yr2015 (2.98) – 3.32 (lockout x Yr2015) (1.85) N = 181, R^2 = 0.128 Where: viol_incis the…
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