A biopsychologist is studying the role of the role of marijuana (THC) on aggression inrats. Specifically, the researcher asserts that the influence of large doses of marijuanawill make rats more aggressive. Twenty two rats are randomly assigned to one of twogroups. The active ingredient in marijuana is called delta-9 THC. One group of 11 ratsserves as a control group and receives a placebo (via injection). A second group of 11different rats receives a large dose of delta-9 THC via injection. These rats have notbeen paired up on any trait. Then the researcher tests the animals by recording thenumber of aggressive responses each of the rats display in a 30 minute test periodone hour after the rats were injected. The data are presented below, and representthe number of aggressive responses per rat in each group.X₁Large dose of delta-9THC Group171518142011152018X₂ PlaceboGrouple H...91211121512101914 191214910With a = .05, summarize the results of the hypothesis testing procedure by puttingyour results in journal form. Ignore the minus sign if your calculated t is negative.Ot (10)-4.11, p < .05t(11)-4.11, p < .05t (20) = 3.13, p <.05Ot (22)-2.94, p <.05Ot (20) = 1.76, p >.05Ot (22)-2.93, p < .05

Null Hypothesis: H0: The mean number of aggressive responses per rat in the both groups are equal.…

Answered: A biopsychologist is studying the role…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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