In: Statistics and Probability
An experimenter who is interested in the effects of pharmaceutical
commercials on mood randomly assigns participants...
An experimenter who is interested in the effects of pharmaceutical
commercials on mood randomly assigns participants to three groups:
a depression medication commercial condition, an anxiety medication
commercial condition, and a faucet commercial condition. After
viewing the commercials, participants report their level of
sadness. Higher scores indicate more sadness. Conduct an analysis
of variance and report the obtained F-ratio below.
Depression
|
Anxiety
|
Faucet
|
8
|
4
|
3
|
6
|
5
|
4
|
5
|
6
|
5
|
8
|
3
|
6
|
7
|
5
|
5
|
6
|
2
|
2
|
8
|
5
|
1
|
|
|
0 out of 2
points
|
|
|
Based on your results from the previous question, is there a
statistically significant difference between the means? Use alpha
.05.
|
|
|
|
|
|
|
|
0 out of 2
points
|
|
|
What is the eta-squared value from the ANOVA calculated
above?
|
|
|
|
|
|
|
|
2 out of 2
points
|
|
|
If the results of the ANOVA from question 1 are statistically
significant, conduct Tukey's HSD post hoc test to determine which
conditions are significantly different from each other. Which
statement below best describes the differences detected from
Tukey's HSD?
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