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Name: Researchers compared the effectiveness of a mood induction technique (
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Description: Researchers compared the effectiveness of a mood induction technique (exposure to depressing film footage) across 3 different groups of 11 participants each: 1) 0 minutes exposure (Control Group), 2) 10 minutes exposure, & 3) 20 minutes exposure. Th

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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Researchers compared the effectiveness of a mood induction technique (exposure to depressing film footage) across 3 different groups of 11 participants each: 1) 0 minutes exposure (Control Group), 2) 10 minutes exposure, & 3) 20 minutes exposure. The response variable is the score on the Beck Depression Inventory (higher score = more depressed mood).

M₁ = 7	M₂ = 11	M₃ = 12
SS₁= 56	SS₂= 96	SS₃= 62
n₁ = 11	n₂ = 11	n₃ = 11

SS_TOTAL = 368

Which of the hypotheses is listed incorrectly? Select all that apply

a)H0: μ1 > μ2 > μ3

B)H0: μ1 = μ2 = μ3

c)H1: μ1 ≠ μ2 ≠ μ3

d)H1: μ1 < μ2 < μ3

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