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(See Solution) A biopsychologist studies the role of the brain chemical serotonin in aggression. One sample of rats serves as a control group and receives a

Question: A biopsychologist studies the role of the brain chemical serotonin in aggression. One sample of rats serves as a control group and receives a placebo. A second sample of rats receive a drug that lowers brain levels of serotonin. Then the researcher tests the animals by recording the number of aggressive responses each of the rats display. The data are presented below.

Does the drug have a significant effect on aggression?

Low Serotonin Control
n = 6 n = 8
M = 22 M = 14
SS = 108 SS = 180

State the hypothesis

State the alpha level and reason for selecting it

Indicate which statistic you have selected

Indicate which distribution will be used, displaying d.f. and critical values

State the rejection rule

Perform the calculations

State your decision in terms of the hypothesis

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Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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