Question

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

Group of answer choices:

H0: μ1 > μ2 > μ3

H1: μ1 ≠ μ2 ≠ μ3

H0: μ1 = μ2 = μ3

H1: μ1 < μ2 < μ3

Answer 1

There are 3 hypothesis are incorrectly they are follow

1) H₀ : 1 > 2 > 3

2) H₁ : 1 2 3

3) H₁ : 1 < 2 < 3

Explanation:

We know that the hypothesis of anova

The null hypothesis is there is no difference between the means.

And the alternative hypothesis is at least one pair is differ.