Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment. Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33 What is the MSsubjects? Round to 2 decimal places. Hint: Σ(X - GM) 2 = 4207.33, Σ(M- GM) 2 = 4133.73, Σ(Mparticipant - GM) 2 = 12.67
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Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.
Subject | 0 weeks | 2 weeks | 4 weeks | Mparticipant |
1 | 28 | 45 | 69 | 47.33 |
2 | 32 | 43 | 72 | 49 |
3 | 30 | 47 | 65 | 47.33 |
4 | 29 | 45 | 75 | 49.67 |
5 | 31 | 44 | 70 | 48.33 |
M | 30 | 44.8 | 70.2 | GM = 48.33 |
What is the MSsubjects? Round to 2 decimal places.
Hint: Σ(X - GM) 2 = 4207.33, Σ(M- GM) 2 = 4133.73, Σ(Mparticipant - GM) 2 = 12.67
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